So, you want to play Taito's Plump Pop, but the trampoline at the bottom moves waayyy too fast to play a good game. Here's a simple fix:
close FBAlpha
edit plumppop.ini in "your fbalpha folder"\config\games\ and find: "analog 0x0100"
change this to "analog 0x0050", save & enjoy
best regards,
- dink