VEX Challenges game. Put your skills to the test in Vex Challenges, the newest online Vex game where the timer counts down instead of up. Try to get to the finish within the allotted time, and don’t forget to pick up the stars on the way! Vex Challenges is just as gripping and thrilling as before, but includes a brand new way to play. The game includes 75 custom levels, a hidden Challenge Mode, new skins and a soundtrack that evolves as you progress. It’s Vex like you’ve never seen before!