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This game in particular for some reason gives me a lot of problems with its mouse cursor movement where other games I've had no problems, so this hack is quite useful.

There is one issue though, which is that the button assigned to left click seems to press the left click repeatedly if the button is held, which I don't think is a behavior of the real mouse controls. So don't hold the button, right? Well, it's a pretty short delay, actually. It's something that's likely intentional for those parts where you might want to click as fast as possible, such as on coin blocks, but it's bad for the things you only want to click once.

That said if mouse controls aren't working for you or aren't available to you (like if you're playing on a console and don't own an SNES or SFC mouse), this is still good enough.