I'm trying to make a complete list of all CAVE games that require at least one suicide purely to optimize score. Here's what I have so far:
-Daifukkatsu Black Label (Strong style, not Power style -- not sure about Bomb style)
-Daifukkatsu 1.5 (Bomb style, not Strong or Power style)
-Ibara
-Ibara Kuro Black Label
-Muchi Muchi Pork (1-ALL route, and only in the second loop of the 2-ALL route)
-Deathsmiles Mega Black Label
-Pink Sweets (only after triggering Infinite Lives. If playing a non-Infinite lives run, no suicides are required for scoring)
Let me know if I missed anything, or if anyone wants to discuss the details of these required suicides.