Ranks and difficulty

Two different questions people ask about Kacky: how far did I get, and how hard is this map? Ranks answer the first. Difficulty answers the second.

Ranks: how much of an event you finished

Kacky ranks you by how many of an event's maps you've finished, not by your times. Clear enough of them and you earn a tier:

Tier	Roughly
Plastic	~10% of the maps
Bronze	~30%
Silver	~50%
Gold	~80%
Kacky	100%, every single map

The exact cutoffs are worked out per event, because events don't all have the same number of maps. The percentages stay about the same; the actual number of maps behind each tier is rounded to something clean for that event. The idea never changes: finish more maps, climb higher.

Getting Kacky (every single map in an event) is the tier people chase hardest. It means you beat the whole thing.

First blood

The first person to finish a brand-new map after an event starts gets first blood on it. It's a small bragging right, and only one player per map can ever have it.

Difficulty: how hard a map is

Every map also carries a difficulty, a rough measure of how tough it is to finish. The harder a map, the fewer people manage to clear it, so a map's difficulty and its finisher count tend to move together: brutal maps have short finisher lists.