Random stops = fail.
If a box ends up in front of you, you lose traction with the ground because the wheel (being on the box) is not touching the ground, and thus does not grant forward momentum.
Combined with they "oh no, the ground sloped slightly" run into a wall bug, which throws _boxes in front of you_ you can't help but fail.
Don't choose a JRPG-roguelike for inspiration. Elona had the problems of both types of games and was generically terrible.
I just lost to a bunch of chickens because they have ranged attacks of 90% of the screen.
HOWEVER, allies have their own aiming reticules, which I really like and wished other similar games had. Keeps me from wasting shots on creatures my allies are killing (and vice versa).
Draco18s' comments