Fickle Hearts is an exceptional pack that makes an almost excessive use of slopes, from the creator of slopes in SRB2 herself.
Fickle Hearts sports some of the earliest, and sometimes only usages of classic gimmicks in the ever-growing pool of Kart maps. Clockwork Tower K's sloped polyobject clock hand is a ridiculously overcomplicated and impressive feat, and Downhill Jam was one of the very first custom sprint maps.
If there's one flaw with FHearts, it's that *every* slope has physics, by design. Fickle literally created the implementation of slopes we use today so honestly what did you expect, but it is pretty distracting sometimes, and oftentimes you slope launch off terrain you weren't expecting to. It ranges from hilarious to rage-inducingly obnoxious depending on the map.
This is still a great pack though; I wish Fickle was still around to maintain it, but it's aged well enough that it's still an easy recommendation from me.
