Thanks for the feedback, I'm glad you are enjoying the app. I can't wait to work more in it and add the battle system.
I am working on fixing the bug on the tutorial, I hope it's fixed by the next update
About the sleep, the when you put it to sleep it will always sleep at least 8 hours, my recommendation is you put the digimon to sleep at the same time you go to sleep.
And yes, UlforceVeemon is in the game, just follow Veemon's natural digivolution line.
Thank you for playing!
I'm always glad to hear other people are playing this early early developed game.