I like it but there are some things that bug me.
Firstly, the controls aren't that precise. for example, in level 1-2 there is that secret pipe I can't get to because those dropping platforms are falling too fast.
the game is also pretty slow. AKR1 is much faster, even if I set the graphics in this game to low quality.
Sometimes I think the music doesn't really fit with each other, but hey, you use a lot of different styles and I still like it.
The graphics are also pretty good, but it kinda misses the quirkiness the first one had. Koopa is seen sideways all the time and it just looks weird. It's more robotic.
I like that shell dash mechanic but because the game has such a slow pace, it's not very useful. Maybe it's just that I haven't come so far in the game.
Overall, I think it could have been better. It surpasses his predecessor in many ways but it also falls flat in other areas.
3/5