Hi ! I'll be quick as I don't have much time. About the PB : You know, at levels 1000-1500; 2000-2500; and so on (not really levels 1-500 as there are other upgrades, such as united front, or critical click chance/damage) the only upgrades are "rapid" and a special upgrade depending of the weapon. Plasma, flak, spread, booster and collider. They increase the dps by 2.5x, 2x, 2x, 3x and... Well I will calculate. The 5th hit deals 5x or 10x damage. If the PB deals 1 damage per shot, each 5 shot we have : 1+1+1+1+5=9 damage or 1+1+1+1+10=14 damage. 14/9=1.556. So the collider upgrade is less effective than a "rapid" upgrade. My idea : Make the collider upgrade so, once bought, the critical burst is every 2 shots. So, this would be, for 10 shots : 1+5+1+5+1+5+1+5+1+5=30 Without it, for 10 shots : 1+1+1+1+5+1+1+1+1+5=18 30/18=2.5 As powerful as plasma upgrade. Isn't that better ? +-+-+-+-+-+-+-+-+-+ And about RL : Increasing the radius could be good. So the RL won't hit only the neighbor blocks, bit also the neighbor's neighbors but with only 12.5% dps (or 25% if the booster upgrade is bought) How ? In the dps tree, there is an artefact whose utility is to make splash diagonally. The level 2 of that upgrade is the radius boost ! (You can think about a level 3 if you want, but maybe setting the 12.5/25% to 25/50% could be good. Think to a level 4 !) That's it ! Thanks for reading !