This map pack seems to jump between a fun, fairly easy experience and a sudden difficulty spike to kaizo-level traps that are nothing but trial and error. The longer it goes on, the bigger these dips and spikes in difficulty get. One level will be easy going, then it'll suddenly crank up the difficulty and drain your lives. I'm convinced map 20 wasn't meant to be beaten by a human, at least on the "secret" route. Sure, I'm weak, whatever, but I'm not gonna waste my time going for a secret level when the design of the levels directly punishes and hates me. Some segments I could mercifully find a way around (those narrow platforms in map 19 for example, you can spindash jump to a small path on the left wall), but for the ones I couldn't, it was just a matter of dying to a trap, retrying, getting past that trap, then dying to the next trap. Rinse and repeat until you can manage to brute force your way to the end.
That said, there's a lot to like for the good parts. When the maps are good, they're very fun, and visually they look pretty good as well. The cutscenes were good for a laugh or two. Bit surprised there were no emblems in this mod, though I found several places where a green grayed out emblem was hovering in place. I actually didn't mind being forced to switch between all 3 characters for different levels, though quite often when faced with kaizo-like challenges I'd wished I could choose my own character. The lack of being able to pick Amy/Fang/Metal kinda hurts too.
The mod's overall a good experience, but the levels towards the end where you're hit with beginner traps and trial and error challenges are infuriating. I think it can have its place in unlockable maps, but for main campaign levels, some of this stuff is discouraging. If the difficulty curve could be smoothed out, I think this is a pretty solid level pack.
I will add time emblems, ring emblems and findable emblems at some point, I just haven't gotten around to adding them yet ^^