FYI, @darzu had mentioned your game in the thread about Boulders and Gems (work in progress) thread, however I was unable getting it working. The “load it directly into your editor” link shows ~200 errors, apparently there’s an incompatibility related to the TileWorld extension.
When I tried to explicitly install the extension by searching for https://github.com/tballmsft/pxt-tileworld I get this somewhat confusing message: Extension pxt-tileworld is incompatible with pxt-tileworld. Remove pxt-tileworld and add pxt-tileworld? If I continue, the errors go away, but the simulator doesn’t start, it just shows a spinner.