Very nice! I like your dungeon crawling and jewel collecting mechanics. This game reminds me a lot of a game called Zomie Incident for the MSX. My negative criticisms for the game would be that trying to platform by making blocks with the block-gun is pretty slow and frustrating, especially coupled with the physics. I also thought the game started to lose it's appeal pretty soon. I ended up finding the same structured rooms and becoming bored. But I liked this overall. Great audio, concept, and graphics.