This patch allows Mario to shoot Yoshi's Fireballs, similar to when you get that special secret item in DW:TLC. However, it has more abilities: first, it has a block flag, so you can restrict the fireball shooting in levels with tilemap incompatibilities; second, but not least, it has a cooldown timer. There's a distinction with the buttons: the X button is responsible for the Yoshi's Fireballs shooting by default.
To be assembled with asar, tested both with lorom and SA-1. Credit is greatly appreciated.
This is a very interesting idea for a mechanic and I'd love to see a hack make use of it. This revision of the patch is vastly improved from the original version, both in functionality and ease of use.