Fight Aliens! Pick up guns off the ground, reload them, fire them! Pick up Ammo and Hearts, and fight off Aliens!
This game is going to receive many updates.
As a test, you can look at the game's source code!
UPDATES:
1.0
2.0 - new weapons and enemies, also shield hearts
2.5 - fixes
3.0 - World Design, Medkits, Energy Drinks, new enemy, and a new weapon.
4.0 - Desert, Breakable blocks, 2 new weapons. Shockwave Pack, QOL Changes.
5.0 - big bombs, reality pistol, sniper, knife, reality biome, map changes, and chests