u/Aussie_the_Robot

You play as a little dude with a blaster climbing a tower while shooting enemies while gaining new weapons (homing missiles, shotgun bullets, chainsaw, etc.) with limited ammo for every new weapon before going back to your base blaster.

Cool details, I remember:

- After every level, you can either jump into a teleporter to go to the next level or jump around it to an extra floor to choose a power up to use in the next stage

- You can grab onto the walls and shoot from the side while slowly sliding down (theres a power up that keeps you from sliding)

- Each level has 5 or 10 floors, and the design of every level changes when you beat the last (from what I remember, the second level is yellow with like a pharaohs tomb style)