Hello! I've made 2 games so far with TRS and it's such a great engine, and I have thought of some things that would make it even better.
1. It would be cool if we could change the stats both for weapons and for monsters & bosses (damage, life, etc)
2. Maybe a bigger map? I get the point of the engine is to be minimalistic but it would be great if it was maybe 4x4 or 5x5
3. It would also be cool if we could create our own custom tiles on top of those who already exist. You could create a new tile and then for its properties, you could implement a "mimic" system. So if I want to do a tile that works like lava but it's blue lava (and you need bothe, blue and red for some reason) you just create the tile and you tell it to mimic lava.
Hope it helps! :D