Detailed instructions are in the game; just click the "Game Manual" tab. Read below if you just want to know the basics of how to play. Click and drag your mouse to move the Earth, or use the WASD keys to move slowly. Click and hold to shoot. Your score is based on how long you survive and how many planets you shoot down. Standard Mode is the modern version of the game. You can shoot planets, damage them by running into them, collect power-ups, use the WASD keys, and you slowly recover health over time. Challenge Mode is the classic version which is similar to the first game. You can't damage any planets or collect power-ups, and you can't use the WASD keys or recover health over time.
Aside from making the planets harder, here are some things I did: Made Earth faster Fixed a glitch where Pluto and Theia become faster on their second life Made rare events SLIGHTY rarer Made challenge mode much more intense Planning on adding more rare events soon: 2/15/2026: Added Haumea, and nerfed the Sun! 2/17/2026: Added Eris, fixed a glitch where Neptune and Jupiter can attack you before the game starts, and fixed the manual! 2/20/2026: Added Makemake! 3/7/2026: Gave Jupiter's thunder a better indicator
