-I died by walking off the edge on the first screen, lol. Good stuff. Also the animations for the player are better, I can actually tell that he attacks forward by default now.
-Slime was fine. Orca feels less fair than the old version, like how it has no tell for when it pops up from under the water. After I wrote that, it seems that a shadow does show up, but only sometimes.
-Mushroom is OK, didn't quite realize the green bar was a poison one until it got me. The lack of a player shadow makes it harder to know you won't get hit when the bullet attack starts.
-Castle is a neat idea but has a funny exploit that makes it trivial. If you attack while the wall is running into you you will just phase through it.