I shall use another game, BZFlag, as a reference.
In it, you can drive using the keyboard, mouse, or joystick
 and use the keyboard for any additional actions (such as dropping a flag during ctf)
When you press the chat button, the keyboard locks up, and you can only continue driving if you were using the mouse or joystick.
So you can type with one hand and drive with another.

In Spiral Knights, you can move using the keyboard or joystick (mouse is reserved for aiming)

Maybe call it the Explosive Promo?
I dunno. I'm going out on a leg here and saying that people liked the slime promo, and I've always wanted a blast cube themed costume.
It could be like this:

Blast Cube Costumes: Yellow-Orange costumes made in the style of node slime costumes, but with similar texture to the blast cubes found in tier 1
Super Blast Cube Costumes: Red-Crimson costumes textured just like the blast cubes found in tier 2
Ultra Blast Cube Costumes: Purple-ish costumes that look like the blast cubes found in tier 3

A Pack containing a permanent Upgrade for all the Slots (2xWeapon Slot, 2xTrinket Slot)

I played Spiral Knights a long time ago, and quit for a long time and came back in June. There were so many things that had been added while i was away. One of the things that were added that I disliked were the Fire crystals. I don't want to have them removed, but I thought there should be a certain item that leveled items up instantly. There could be different versions of it, that leveled up items depending on what level they are, a 1* version could level up an item 1 level, 2* 2 levels, 3* 3 levels, 4* 4 levels, and 5* 5 levels.

I hate it when i've waited for like an hour, just wanting to play BN Or LD, When i'm one of the first to sign up, and yet the people AFTER Me go first, I think it should be first come, first served, Leave Critism, Comments, Etc. Below

NEED a stagger storm reskinned as a mug of beer and a big angry bomb reskinned as a cask.

Maybe they could make a whole Oktoberfest event with lederhosen and dirndl costumes. Also a "hoppy aura" that is like the sprinkle aura, only with hops.

Not sure if this is appropriate enough for Spiral Knights, but I see lots of potential for a promo that I would spend a lot of money on.

I've been thinking about this a while and it's really sad to me to get rid of some not so worth acessories to replace by new ones when I could give them newer use instead of trashing them.
I've talked with few friends and guildies and they also agreed with this, to make possible to free recover acessories but those would bind to the knight, so we can't profit from them, unless we wanna sell them to someone else, pay the recovery ticket and the acessory would be removed as an unbound item.

Hello people. I have a few ideas which i thought to be good, i ll just leave it here to see how people react to it. It will definitely bump into something that was already suggested before (I dont know which, but it will)
Because this game was designed to be simple and easy: the pressure the mobs will ever cause you can not force you to stress out (unless you have lag, new players or simply play for fun without proper skill or tactic). So i think devs should add these into the arcade:

Because of the initial explosion being removed long ago in a galaxy far far away and most likely won't be put back in, just make the Blast Cube explode immediately upon being unalived because it's kinda building up to nothing.

New servers in the Australasia region, or better netcoding.

The lack of any servers outside of Europe or america hurts this game's potential, if you're from anywhere other than these two regions, be prepared for game breaking latency, the game is literally unplayable. It may as well be region locked.