TheSkyX is a very powerful and popular astronomical telescope support software that contains an array of tools for advanced or amateur astronomers. It can simulate the starry sky in real time, adjust the time or location at random to see different sky scenes. Plus, it is capable of simulating all sorts of motion of the celestial bodies, as well as the astronomical wonders such like solar eclipse and lunar eclipse.

PopCap Games produced a lot of classic small PC game works with high playablity, Cosmic Bugs is one of them (developed by Retro64 in 2004). This delicate small puzzle game challenges player's judgment and reaction speed. You may played similar games on the FC console long ago, yet I can't call out all of their names, but two of which should be JezzBall and Qix.