Gun blast radius increases by 12 units. Applies before Gun Familiarity and Gun Expertise's radius multipliers. (The in-game description erroneously states that it increases it by only 2 units.)
Gun attack cooldown reduces by 0.1 seconds (0.2 seconds overall), effectively increasing its attack speed by ~7.69%. Stacks additively with Quick Draw.
9
Range increases by 3 units (5 units overall). Since this causes her base range to match Gun Expertise's set range, Gun Expertise no longer increases range.
10
Bloons inflicted with bubblegum take 1 normal-typedamage per second. Affects all layers and lasts indefinitely.
Princess Bubblegum is primarily an ability reliant global range DPS that has some support capabilities as her secondary strength. Jellybeans Have Power and its upgraded variant, Soda and Mints, deals respectable DPS even without powers, while her main support utility comes from To Me and Royal Promise.
As a DPS, Princess Bubblegum wants lots of attack speed. Since her Jellybeans/Soda and Mints ability scales with attack speed but cannot be buffed by raw damage (although MOAB damage still works), she wants as much attack speed as possible until she reaches the attack speed cap. Because by default she attacks 10 times a second with her ability, if the player uses powers such as Party Time, too much attack speed trinkets is unnecessary, even then she still wants Liquefier, Baker's Shard, and Rock Shirt/Gemma the Gemstone, otherwise more attack speed trinkets are recommended. Baby Tooth is useful for improving her ability uptime while Engineers Blueprints provides a sizeable amount of MOAB damage for her. Because of how fast she attacks with Jellybeans/Soda and Mints, she is one of the few characters that can reach the speed cap without powers and said ability also has global range, making her a potent DPS when set up properly.
As a support, Princess Bubblegum is much weaker than Tuxedo Jake as she does not have many support capabilities that rely on a specific build. Royal Promise can be used on her DPS build without any consequence, and the same can be said with her extra allies, alongside her +20% attack speed buff for her allies. Thus, building her for range and support is solely for her +3 range for all towers from Regal Presence such as Siren Hat and Treetrunk's Apple Knife, with range-increasing items such as Glasses of Nerdicon and Rock Shirt for buffing the most towers. Even without Tuxedo Jake, later on Sam or Supermonkey are much better candidates for a support build as they already stack range trinkets with very little way of improving their DPS otherwise, so support Princess Bubblegum is primarily for when the player's characters are lower level, where enough trinkets for a proper DPS build cannot be equipped. Note that Super Intelligence cannot decamo DDTs, so she cannot support as DDT decamo for Supermonkey.
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