I'm glad you stepped out your comfort zone! Kudos! Love your game idea. Playing two characters at the same time works surprisingly well and it's actually really fun to control both characters at the same time running through different platforms. I can see this being a coop game as well but single player is fun too. The puzzles are interesting. The sound effects are unfortunately a little loud compared to the BGM, and maybe a less spooky BGM would've been more appropriate too. But great job overall!