Yeah, there is a bit of SMC in there (DigiTan called it "polymorph") and yes, the attached sources (in the first post and in reply #6) are the latest sources. CrASH_Man's tilemapper also uses a bit of SMC. I started work on converting it over to an app a while ago, but i'm not sure where those sources went. If someone else wanted to pick up on that, that'd be great. Then i could start working on the multiplayer stuff.

EDIT: I just popped the code from Fullrene in and now it works just fine on the 83+ in TilEm2, gonna load it up on my 83+BE now. It's also much smaller now Just loaded onto my 83+ and it works fine except for exiting gives a RAM clear

EDIT: Here's a modified version that works for all calcs, though for the 83+ series i think it leaves >$C000 execution open (it checks if the calc is an 83+, if it is it just quits and doesn't reset the protection). Source and 8xp included. It's also over 200 bytes smaller than the previous Crabcake-based version, so it should be a bit easier to fit on your calc.

I just moved stuff around a bit and it looks like the code is around 14600 bytes (actually a little less, but moving some of the tables out of the battle routine might be more trouble than it's worth). The map data itself isn't huge, but with the sprites, text, and enemy data it's a bit more.