Crazy J is based on the popular game "Flappy Bird." Crazy J flies on his dinosaur as long as you tap the screen. Try to fly between the stone walls and score this many points as possible.
---- About the game ----
The game was invented by my son of 10 years old, after some discussion about the use of games on mobile phones and tablets, he was only allowed to play on his tablets after finishing the next job:
"Think of an existing game, fantasize how you would make the game, what scenery, how do the characters look like and what name would you give it."
See here the game Crazy J, Jamie (10) flying on his dinosaur through prehistory!
Please leave a comment so he can read what you think.