Gem Rush turns a BallisticNG race into a Bejeweled Twist board at 600 km/h, with Terraria wandering onto the track.
What you do
Fly through rows of real Bejeweled Twist gems (read from your own copy, sounds included). Grab three of the same colour in a row to make a match and trigger a speed boost. Chain matches for combos, voice calls and a shield.
Terraria's slimes hop across the track: touch one and you slow down and lose your chain. Hearts give a shield, Hermes Boots give a boost.
On the final lap the Eye of Cthulhu blocks the finish. Match gems to defeat it before you reach it.
Needs BallisticNG (you play inside it), plus Terraria and Bejeweled Twist installed. Nothing from those games is copied; everything is read from your own installs while you play. Solo, against the normal AI racers.