Talking with other runners, it might be fun to have a "100%" category: catching jerry at the end of each stage, when the screen stop scrolling.

The run would focus more on making jerry runs as much as possible without catching him.

for the stage 6, it's very tricky because of the dog. I Found there is way to make jerry drop a mine at the right time to jump and catch him before the dog wakes up. it's not too hard compare to other trick in the game, here is the video: