The moveset kinda feels a bit slapped together, but it's fully functional. The spamdash isn't really very useful given how unlike in SA1, starting it completely stops all existing speed you had going in to it, making it not really able to be used in any way the base spindash can't, while also removing your ability to roll without coming to a complete halt first. The dropdash will also get cancelled by the spamdash once you land it if you don't stop holding spin as soon as you hit the ground, which can be kinda annoying. The upthok and bounce are decently fun though, and actually do flow together quite well, it's just that the spin moves don't really feel particularly thought out. Pretty decent overall, but has it's fair share of issues.