hi, im luis i use construct 2 too, i had never submit any game but i like to make mechanics, i i can help you with the game just tell me
i speak spanish, sorry my bad english
this links are of some testgames or something like that:
touch:
dino-rescate-touch.bitballoon.com
cubitoplataformatouch.bitballoon.com
siesraingame.bitballoon.com
not touch:
roguelike-test.bitballoon.com