Here is a nifty idea for a rebuildable handheld game pad up on Lego Ideas. It is set up where the basic pad has hand grips and triggers for pinball style gameplay. The set proposes 5 initial game modes and encourages the player to come up with new game ideas from their imagination. The youtube video explains the features best:
The first 5 games already developed are: Skee Ball, Baseball, Space Pinball, Target Practice, and Soccer.
Here is a photo showing two units linked together to make two player options available. And the project proposes that it would come with an exclusive Green/Blue Jester, and introduce a Globe printed in natural Earth colors as apposed to the old map colors featured in previous sets.
What other game modes can you think of for this Handheld Arcade? – Go ahead and post them in the comments.