The accompanying json file has the bit for "Gives power-up when eaten by Yoshi" set. This causes Mario to get star power if Yoshi eats this sprite. I recommend unchecking this with CFG Editor to prevent massive cheese.
Only one inaccuracy: Original sprite bounces upward slightly when colliding with ground, but this disassembly doesn't do that. Still, a good attempt. Did one minor optimization and approved.
E: I forgot to mention it IS SA-1 compatible. Someone forgot the tag, so I've added it.