Cool game! There does seem to be some balancing errors, though. It seems like every weapon does the same amount of damage, which makes the grenade underpowered, the shotgun objectively better than the normal gun, and whatever the 4th thing is overpowered. The attack powerup is also overpowered (maybe it should be reduced to 50%). I think if this game was balanced, it could be fun, trying to switch between different playstyles while you play the game.