One small thing I noticed that irks me is that when the level 2 ballista fires, the bullet looks in the tower as an upgraded form and in the air as a level 1 ballista bullet. Fix?
If you set your speed up all the way, when you get in combat, after you win, if you hit go before the bottom part re-adjusts, than when another event shows up, you can press "go" to skip it, like if you are low on health or just tired of fighting. Useful when you are being bombarded by Buccaneers.
Needs an option for harder AI, and maybe create a sequel with more Digimon, more moves for each, a system for digivolution with a timer and not a collection system, a better animation for digivolution, and an option for a game with no timer. Please like this so it gets to the top.