Doors QA vs Aphelion

Look at the mental arithmetic problem on the top panel, go through the correct door on the stage, and complete the level by finishing within the time. When you clear a level, you can advance to the next level and your score will increase rapidly. - The player who keeps running toward the back of the screen can move left and right by dragging. - The question will be displayed on the top panel, and at the same time the answers (one correct answer) will be displayed on two to four doors on the stage. - Players can only pass through the correct door, and their score will be added as they pass through. - If a player hits an incorrect door, they will be bounced backwards and lose time. - If you reach the goal within the time limit (initially 30 seconds), the level will be cleared and the remaining time will be added to your score. - If your score is within the top 20, the high score screen will be displayed, displaying a list of the cleared date, time, level, and score. - A level has multiple stages, and each stage has a set of answer doors. - Time will be added if you get a potion that is randomly falling on the stage. - As you clear the levels, the number of stages increases and becomes harder to clear. - If you can’t clear it within the time, it will be “game over”. (If your score is within the top 20, the high score screen will be displayed) - You can also pause or end the game by tapping the “X” button on the top right.

Master gravity with one flick. Launch a comet, bend its trajectory around moving worlds, and complete 100 handcrafted orbital puzzles. EXPLORE TEN CHAPTERS • Aim with precision using a live trajectory preview • Slingshot around planets and capture stable orbits • Collect and deliver ice across moving systems • Reshape trajectories with timed engine burns • Survive atmospheric entry and dangerous ring crossings • Defend planets from incoming asteroids • Use animated solver hints whenever you’re stuck Play at your own pace with no timers, energy systems, or forced ads. The core game works offline and fits into a remarkably small download. One flick. One trajectory. One perfect solution.