1. http://i.imgur.com/5sip0sI.png
http://i.imgur.com/iHHTdhF.png
http://i.imgur.com/LsXQc4v.png
Black kats shouldn't be flying around and blocking the view when they're not trying to go through the wall
2. http://i.imgur.com/M6atf72.jpg
http://i.imgur.com/3b6bbW6.jpg
http://i.imgur.com/kAy8vMo.jpg
http://forums.spiralknights.com/en/node/84515
This happened to the T2 LD match i joined
3. http://i.imgur.com/2taKDlW.png?1
Needle shot looks like Toxic needle shot.
4. http://i.imgur.com/i1jbV2Y.jpg?1
Fire vial looks like a stun vial outlined with red in Training Hall in Haven
5. http://i.imgur.com/tz4iG42.png?1
Weird icon
6. http://i.imgur.com/VBMkOOL.jpg
That doesn't make sense...
I had one similar to your Grimalkin glitch. I died in a Vana fight and after being revived, Vanaduke toppled down and the game froze for a split second. When it came back, Vanaduke was HUGE! I didn't get a good screenshot, but you can see his size compared to me (I'm short sized) while he's melting.