Gap 100 Achievement
Find 100 Gaps in any run!
As you roll through each level you'll notice a brown "_____ Gap!" popping up in the scoring on your screen when you jump certain gaps that can be anything from jumping down a flight of stairs, to jumping between buildings. Because of the latter, these gaps appear quite a bit more frequently in the rooftop level so, if you can afford it, buy it and you'll get roughly 9 gaps a minute. You need to jump a total of 100 different (not unique) gaps in a single run of endless mode so you will need to play roughly 10-12 minutes without bailing out. This is, of course, also doable on the School level which is overall easier, but will take longer (so longer and safer).