In the previous game, my little alien just had a walk-on part (okay, a spin-on part) in the splash animation. Our hero ball and that mean old evil ball were the stars. The following game gives the leading role to the alien, although he does take a bit of a beating for it.
Bash the Alien! is the first game app I wrote in App Inventor. In fact, it's about everyone's first game because it is based on MoleMash on the AI tutorial site, which in turn came from an old arcade game called Whac-a-Mole™. We all just like bashing stuff in games, I suppose.
I elaborated it a bit (see the next screenshot). So, let's discuss it. Although the techniques are somewhat the same, the game itself is played totally differently. It also makes use of the clock timer in the game and hides the alien from time to time, and other little tricks to make it harder than it looks to play—which is precisely what a good game should do.
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The design part of this type of game is minimal. We need a canvas ...