I gave in and bought Minho from the store. With his time extending ability, patience, and a lot of memorization, it is possible. Just very difficult. What I figured out eventually was that a lot of the levels will reuse pieces of the maze and it is worth your while to just get good at it. For me it meant taking things slow until I got it, event though it meant you would run out of time in the end and have to do it again.
Sorry, a little slow to update this thread. We released an update last week that added 100 new levels, a new themed area with new gameplay elements, and additional challenges for every single lievel. That is on top of previous updates which have improved stability and frame rate, added Griever encounters, new characters, and revamped the UI look and feel. Enjoy
The new updates have improved the game immensely! I just wish more characters could be unlocked with gems...