Classic case of 'Addiction'
This game brings back memories; Sitting in the room with my bulky gameboy and and 4 extra batteries. Lol.
The game speaks for itself. Anyone who has played and enjoyed any Game and Watch games will enjoy this. Just like the good old games the difficulty changes in a heartbeat. I'm glad that you kept that aspect, along with other things, of retro games with this game.
I think the game would have been better if you would have added some monotone God of War background music and other game modes. Maybe an epic battle between Zeus and Mr. Game and Watch? Just something to give the game more game play options and a couple more of wasted time on our behalf.
Besides that I thought it was a very addictive game. 9/10. Can't wait to see what you come up with next.