Meteor Blast Synergy takes the color-matching meteor destruction of Meteor Blast and introduces an innovative new Synergy system to merge lasers and cause even more devastation. Arcade mode now has 10 stages with stat upgrades, complete this and you can try new Endless mode. There's also a list of Challenges to try and complete which will unlock Ultra Hard mode if you succeed.

Important - not all keyboards will let you hold W, A and D togther, which is required for Synergy. If the key combos dont work for you, they can be reconfigured from the options/pause menu. Play about with them until you get something that works and feels comfortable..