I moved everything out of a folder. So everything is root, but still a black screen with the C2 loading logo, not loading.
This is how my data.zip file looks:
jquery-2.0.0.min.js
offline.appcache
app.manifest
c2runtime.js
icon-256.png
images
images\awesome-sheet0.png
images\got_it-sheet0.png
images\lol-sheet0.png
images\make_case-sheet0.png
images\make_cpu-sheet0.png
images\make_gpu-sheet0.png
images\make_hdd-sheet0.png
images\make_psu-sheet0.png
images\make_ram-sheet0.png
images\pcb-sheet0.png
images\select_case-sheet0.png
images\sell_pc-sheet0.png
images\uitleg-sheet0.png
images\unlock_next_tier-sheet0.png
images\upgrade_gpu-sheet0.png