Cyberkast is a multiplayer free-for-all and dueling game, aimed at groups of 2-6 players wishing to have some seriously chaotic fun. Genre-wise, it combines elements of arcanoid, billiard, pong and even a tint of tower defense or strategy, resulting in a mix of arcadey and logical goodness. Flavour-wise, it's about deep space duels of cybernetically enhanced transhumans whose control over time, matter and energy has started to resemble sorcery.
Blue waves are kinetic charges - they start slow and weak but whenever they collide with any kind of spell, deflecting for it, they gain a bonus to their parameters.
Yellow waves are nanite servitors - it's a healing/buffing spells. It heals players if it hits them (even your enemies - such usage is not recommended for duel mode), it repairs and upgrades stationary spells (walls and such) and it recharges and buffs moving spells (like those kinetic charges, for example).
Red things are assault phasers - you summon them on the arena like a wall and there they stay, periodically phasing in some kind of combat spell. They're basically turrets. And the kind of spell they phase in is for you to decide - you choose it while adding the spell to your spellbook.