What a lot of fun. It’s notable that I immediately decided I needed to kill the hamsters while avoiding their droppings. Lots of really good games reward players that subvert expectations. Earthworm Jim turning left instead of right at the start of a level. Braid Tim standing on a cloud and holding down fast forward for 20 minutes. Quake grenade-jumping up into impossible to reach teleportals. Every puzzle in Baba Is You.

What kinds of emergent behaviour / secret level / weird hacks could you introduce into space invaders? On mobile I can’t not-shoot the hamsters but maybe if I managed to dodge them with every single bullet they would land and make peace with their fellow mammals?