Comparison

Chikuwabu! vs Contagious Mayhem

Price, ratings, monetisation and update history for both games, side by side โ€” with what reviewers say about each.

Head to head
About

Chikuwabu!

Features
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A retro omnidirectional scrolling 2D action game. Use items to solve the mystery of the map and find the exit. Let's collect "Chikuwabu" placed in various places. (Some items are difficult to pick up and some are hidden.) There are some stages that you can't play unless you collect a certain number of "Chikuwabu". There is no score, we measure the time to the exit. Operation is easy: ใ€€Touch = beam firing ใ€€Right and left lever drag = Rotation/movement of own machine ใ€€Release all fingers = Restore the shield For easy operation, You can change the orientation of your smartphone while playing. Enemy planes have a front/back side, It cannot be destroyed when its backside is shown. For maps that scroll in all directions, There are "Chikuwabu", items, and tricks, Please attack well. (All 90 stages, 20 stages are free)

About

Contagious Mayhem

Features
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Get ready to dive into the microscopic world with "Contagious Mayhem"! This game provides a perfect blend of fun, learning, and excitement, that transforms you into a virtual germ fighter. In this fast-paced and thrilling game, your mission is to sanitize various surfaces and spaces, all teeming with a variety of microbes that you need to identify and disinfect. As you progress, you'll encounter tougher, more resilient germs, bacteria, viruses, and fungi, each with its unique strengths and weaknesses. Utilize a wide array of disinfectants, each equipped with unique capabilities to combat different types of microbes. The game encourages strategic thinking as players must decide the best approach to handle each wave of microbial invasion. But the game isn't just about mayhem! It's also an educational tool, giving players a better understanding of different types of microbes, their characteristics, and how they spread. Through engaging gameplay, players learn about hygiene and public health in a way that's fun and interactive. With high-quality graphics, a captivating storyline, and countless levels, Contagious Mayhem offers endless entertainment while promoting science education. Perfect for players of all ages looking for a game that's as challenging as it is enlightening. So gear up and join the fight against germs in Contagious Mayhem, where every clean surface is a victory! The game has been developed in the Peliselli project (The project is funded by the REACT-EU instrument's appropriations as part of the actions implemented by the European Union in response to the COVID-19 pandemic) and in the ARPO project funded by the Regional Council of Satakunta. The making of the game has also been funded by the Academy of Finland (decisions 337863 and 337861). In collaboration with: SAMK โ€“ Wander Research Centre, SAMK, and the City of Rauma.

Screenshots

Chikuwabu!4 screens
Contagious Mayhem4 screens

Verdict

The call

The clearest difference is in-app purchases: Contagious Mayhem at none against Chikuwabu!'s 1. Contagious Mayhem also leads on update cadence (every 2 months vs every 41 months) and iOS requirement (12.0 vs 17.6). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Chikuwabu! sells 1 one-off in-app purchase. Contagious Mayhem asks for nothing beyond the download.

UpkeepUpdate frequency

Chikuwabu! ships an update every 41 months, Contagious Mayhem every 2 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

Scorecard3 real differences ยท 3 level
Chikuwabu! versus Contagious Mayhem: the parameters behind the verdict, then further details
ParameterChikuwabu!Contagious Mayhem
PriceFreeFree
Update frequencyEvery 41 monthsEvery 2 months โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.612.0 โ€” better
Further details โ€” not scored
Size32 MB147 MB
Age rating4+12+
DeveloperHiroyuki SasayamaSatakunnan Ammattikorkeakoulu Oy

In-app purchases

1 purchases

Chikuwabu!

One-time1
  • All Stages$2.99
None

Contagious Mayhem

No in-app purchases

Questions

Is Chikuwabu! free?
Chikuwabu! is free to download, with in-app purchases available.
Is Contagious Mayhem free?
Contagious Mayhem is free to download, with no in-app purchases.
Do Chikuwabu! or Contagious Mayhem have ads?
Neither Chikuwabu! nor Contagious Mayhem shows ads.
Which is updated more often, Chikuwabu! or Contagious Mayhem?
Chikuwabu! ships an update every 41 months, and Contagious Mayhem every 2 months. Most recently, Chikuwabu! was updated on October 25, 2026 and Contagious Mayhem on October 18, 2026.

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