Glad you enjoyed, thanks so much for playing!
Yeah HammerMan is definitely a buggy little guy at the moment. I ended up implementing that part of the game pretty late in development and I think it shows 😂 In the post-jam version I'll be working on fixing him (and the rest of the desktop) a lot more and tightening up the environment interactions. I'll also be improving the actual HammerMan.exe game since the controls could definitely be improved. Should make it a bit more fun and less frustrating to play.
If anyone else has trouble with HammerMan glitching off the screen: Closing the HammerMan.exe window and reopening it should reset him, although you'll have to play through his game again to get him back outside of the game window sorry ;)