cube fusion

Originally closed due to copyright issues regarding a few bosses build a bridge and fuse cubes together (or speedrun the game in under 3 minutes, thats also possible) pick up cubes by walking to them, press backspace to drop them, they might fuse, i recommend checking the researcher the nearly 1 month long wait for this to be reopened is not worth it, 0.1.7 probably should just be 0.2.0 entirely anyway, truly shows me the lesson to not overscope and add too many things to an update, since all it does is just give a large impossible checklist