Event Speed x3 Faster

I'm making a minigame right now requiring the player to catch objects. The problem is, concerning the difficulty, with the standard RPG Maker Event Speeds it's either too easy or too hard. I've tried to change it up by requiring the player to catch multiple objects instead, but, alas, this did little to fix the problem.

This is why I wonder: wouldn't it be possible to set the event's speed to something like x2.5 or x3 Faster?

Go into the event itself and change the speed on the left hand side.

Yes, but you see, normally you can only select between 2x faster and 4x faster. That's what I'm having a problem with.

Ironically, I tried googling it and this thread was the first result :p

I think this needs a script modification, but I'm not sure which one - I'll get back to you if I find out.

You would need to modify the speed using script calls instead of the drop down event command if you want to modify it further. Take note though that too much speed can cause problems.