Suddenly, the reminiscence of me as a little kid playing an old game on the iPad bumped into my mind in the middle of the calculus class.

Can’t remember exactly when, it was around the time the first iPad just came out, the smart touch-screen tablet.

The game is about the players are able to control a ninja character, and the ninja is keep climbing up on the wall. Right, there are two walls, and the ninja is able to jump between these walls. The goal is to climb as high as possible while avoiding evil squirrels, dive-bombing birds, enemy ninjas, throwing stars, exploding bombs and more.

Can’t remember the name at all. Asked my friends, they knew and played this game also, but they don’t the name either.

Even did some research online, finally, found the name “NinJump.” And I entered this name into the search box in the app store on my phone, but it shows no results. Okay, I guess they probably took this game off, for whatever reason. Let me just keep it in my past memory.