Add spaces: Keepabackupofyourimportantfilesinaseparatedrive

Answer: Keep a backup of your important files in a separate drive

Add spaces: Muchlikepingpongbutwithairbendingskills.Power-upsmayalsobecollected.

Answer: Much like ping pong but with air bending skills. Power-ups may also be collected.

Add spaces: Zhenzi-Bluecoatedsalsanormalfitjeans,withstretchandadjustablerubberbandinthewaist

Answer:
Zhenzi - Blue coated salsa normal fit jeans, with stretch and adjustable rubber band in the waist