Great game, little movement glitch I discovered. If you move at a diagonal pressing W&A or W&D you seem to move significantly faster. Could just be me, but it seemed interesting to let it be out there.
Fun fact: This glitch also appears in older versions of Minecraft (1.7-1.8 I believe), but significantly slower. I think it's caused by making each key just add velocity in a direction to the player, so if W is 1 speed and D is 1 speed, W+D make 2 speed, diagonally.