These block contains 16 cannon blocks, each have their own 8 different direction (as for the other half of the group, would shoot mario automatically w/out a button), as well as 2 stopper blocks (see readme for which each is different) and a solid block that is only passable when mario is being launched (in cannon phase, which is useful of you don't want mairo to wander freely in the "cannon only" area).
when launched, mario will shoot in a straight line, so place them carefully.
The button based cannon are used if the player is waiting for enemies to get out of his way, the automatic ones are used for areas to blast mario from one place to another quickly.
Did someone was able to make this work? I am very thrilled to use this. I added the gamemode_14 in uberasm but it does not seems to work. Every time I get in the cannon is shoot right-down and then I can never enter it again. I also tried to put it in global_code with the same result.