# upg: bullet heaven

> Fast-paced bullet heaven auto-shooter action platformer with roguelite progression. (iPhone/iPad app by Vijay Pemmaraju.)

- Source: https://appshunter.io/ios/app/upg-bullet-heaven/id6739788187 (this page in markdown: same URL + `.md`)
- Developer: [Vijay Pemmaraju](https://appshunter.io/developer/984961444)
- Category: Games, Action
- Price: Free
- Rating: 4.71/5 from 14 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 11 MB
- Languages: English
- Released: 2024-12-24
- Data updated: 2026-08-27
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/upg-bullet-heaven/id6739788187/reviews.md

## What is upg?

what's upg!

upg (pronounced up-gee) is a fast-paced bullet heaven auto-shooting action platformer where you focus on movement while your weapons do the shooting. dash through procedurally generated levels, collecting upgrades and taking down waves of enemies.

features:

- automatic weapon systems - focus on dodging and positioning

- fluid movement system with wall-sliding, dashing, and precise jumps

- multiple weapons:

  - rapid-fire projectiles

  - homing missiles

  - orbital defenders

  - chain lightning

  - returning boomerangs

- roguelite progression:

  - (upg)rade existing weapons

  - unlock new weapons

  - improve speed, health, and jump height

- procedurally generated levels

- pixel art with dynamic lighting

- retro-inspired sound effects

controls:

- left joystick to move

- right buttons to jump and dash

- that's it - weapons fire automatically

stack upgrades, combine weapons, survive as long as you can!

## Key features

- Automatic weapon systems
- Fluid movement with dashing and wall-sliding
- Multiple weapon types
- Roguelite progression and upgrades
- Procedurally generated levels
- Pixel art with dynamic lighting

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/upg-bullet-heaven/id6739788187/reviews.md

### 4/5 — Optimization Issues

*2025-01-27*

The game play and style are both very appealing and done well. Hope there is an interest in adding currency to upgrade items outside of just repeating the lvl over and over.

Procedural generation can give the game a good hook but its also its downfall in some ways. My 2nd map I played on, generated a pocket just big enough for me to sit in and never worry about moving. Maybe some tweaks to the generation algorithm can help prevent this.

Since I could stay in this pocket of safety it gave me a chance to see the frame rate tank and it didn’t take very long. Even if a player is good this is going to create a hard cap in the game play.

I am not sure if this is correct but if every enemy is procedurally generated then maybe that can be change? Maybe once an enemy type is generated its then “stored” in memory and they keeps spawning that specific generated enemy with a specific frequency? Maybe I’m just saying nonsense but maybe it helps give you an idea on a solution.

**Developer response:** thanks for the review! the game is getting some pretty big updates very soon, stay tuned! if you wanna see what i have in store, check out the browser version: https://upg.vijay.io

### 4/5 — Fun but awkward movement

*2025-01-17*

It’s fun and a great concept but with not many features, The movement is bad imo It’s hard to navigate the platforms with dashes because it’s hard to dash in the right direction while not overmoving with the joystick. Most of the time for me, I was only moving right and left because my skill issue and the open space prevented me from being able to go onto the floating platforms which kills me due to the sheer amount of enemies, Would be a much more enjoyable experience with more capability for movement up and down to dodge the enemies. This could be done by making the ball stick things easier to get onto, making the jump more long lasting and adding more platforms with or without constant collision to fill the empty faces. My inability with vertical movement and with the dashes also prevented me from retrieving exp of enemies killed from far away. Would also be cool if there were more things on the map or roguelite features(not like permanent stat gains) but more like an ability select menu and more abilities to combo them.  
Conclusion: Make vertical movement with dashes and in general easier(so I don’t just move left and right) Make jump better Put more stuff in the empty map so the guy can move more(so I don’t just move left and right) Add the dynamite from terraria or Minecraft Make more potential for ability combo with roguelite type stuff if possible. Enemy and ability dictionary

Also it’s too laggy

**Developer response:** thank you so much for the detailed review! i do agree that the movement could use some work, especially on mobile (it's a little easier in the desktop version imo). fwiw there is a jetpack upgrade that helps with vertical movement. i also am working on a bunch more upgrades so there will be more variety. there will definitely be more map features and traversal methods. finally, i am constantly working on performance improvements.

thanks again for the review! you can try the web desktop version at upg.vijay.io which i keep up to date with the latest features (mobile is a bit behind because it requires more thorough testing)

### 4/5 — It’s very fun until…

*2025-01-13*

I was having a blast but I started to get pretty far and my phone started lagging. I’m not sure why maybe too much going on. I have an iPhone 14 so I think it should be able to handle it

### 5/5 — good

*2025-01-02*

good

### 4/5 — Unoptimized impossible to play

*2024-12-31*

How do you make a game this small with this bad controls and stuttering and lag. The game is unplayable. EDIT: as long as you keep trying to make it better i will keep trying to play.

**Developer response:** thanks for checking out the game, i'm sorry you were experiencing performance issues. i have some fixes coming in the next update that will address some of the issues reported thus far, and more to come after that. 

the game is fully procedurally generated including the player sprite and enemy, so it's more computationally expensive than meets the eye, with that said, i very much want a smooth 60 fps experience on all modern devices, so i will be constantly working on it. 

thanks again for playing. if you'd like, you can check  the web version on itch.io on a desktop chrome browser, it performs way better there.

### 5/5 — Fun, unique

*2024-12-27*

Fun game, simple.  Feels new, Ive never played a game like this

### 2/5 — Unoptimized impossible to play

*2024-12-25*

How do you make a game this small with this bad controls and stuttering and lag. The game is unplayable.

**Developer response:** thanks for checking out the game, i'm sorry you were experiencing performance issues. i have some fixes coming in the next update that will address some of the issues reported thus far, and more to come after that. 

the game is fully procedurally generated including the player sprite and enemy, so it's more computationally expensive than meets the eye, with that said, i very much want a smooth 60 fps experience on all modern devices, so i will be constantly working on it. 

thanks again for playing. if you'd like, you can check  the web version on itch.io on a desktop chrome browser, it performs way better there.

### 5/5 — Simple and Fun

*2024-12-25*

Often mobile games get overly complicated but not this. Simple UI, and simple goal but nonetheless very entertaining. Can’t tell you how refreshing it is to have a game I can just load up, enjoy and not have to think too much about. Thanks Vijay!

## Frequently asked questions about upg

### What is upg's gameplay like?

upg is a bullet heaven auto-shooter action platformer. You control movement and dodging while weapons fire automatically. The game features procedurally generated levels and roguelite progression.

### Does upg have offline play?

The provided description does not specify if upg supports offline play. Typically, action platformers with procedural generation can be enjoyed offline, but this should be confirmed.

### What platforms is upg available on?

upg is available on iPhone, iPad, and iPod. It is designed for iOS devices.

### How often is upg updated?

upg was last updated on February 2, 2025, with version 0.5.0. This indicates a recent update, suggesting active development.

### What is the age rating for upg?

upg has an age rating of 4+. This means it is suitable for children aged 4 and above.

### Does upg have ads?

No, upg does not contain advertisements. The app is free to download and play without interruptions from ads.

### What kind of upgrades can I get in upg?

In upg, you can upgrade existing weapons, unlock new weapons, and improve your character's speed, health, and jump height as part of the roguelite progression.

### What makes upg's movement system stand out?

upg features a fluid movement system that includes wall-sliding, dashing, and precise jumps, allowing players to focus on dodging and positioning while their weapons engage enemies.

## Version history (last 5 releases)

### 0.5.0 — 2025-02-02

- completely revamped upgrade system, now focusing on synergies
- the player is now a flying ship instead of a humanoid, controls revamped

### 0.4.0 — 2025-01-03

- added more weapon upgrades
- implemented boss spawning
- fixed an issue causing the game to freeze when using a zipline
- fixed a known issue causing the virtual analog stick to glitch when using multiple touch inputs

### 0.3.0 — 2024-12-31

- significant performance improvements

### 0.2.0 — 2024-12-27

- fixed performance issues and enhanced terrain generation
- fixes bug causing the game to crash when selecting the wheel weapon
- fixes audio bug when using the black hole weapon

### 1.0 — 2024-12-24

No release notes.

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## More apps by Vijay Pemmaraju

- [jottie: smart notes](https://appshunter.io/ios/app/jottie-smart-notes/id6757324448)
- [yibble: tiny alien pet](https://appshunter.io/ios/app/yibble-tiny-alien-pet/id6761661025)

All apps by Vijay Pemmaraju: https://appshunter.io/developer/984961444

## Related topics

[bullet heaven](https://appshunter.io/ios/topics/bullet-heaven)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*