Bonus Glue Gunner

 is an upgrade in the Primary Monkey Knowledge tree. It makes the first Glue Gunner placed per game free, in a similar effect to the Monkey City upgrade but for the Glue Gunner. If a free Dart Monkey affected by Bonus Monkey! is placed, the provided free Glue Gunner becomes voided. requires 10 Primary Knowledge Points invested, Cheaper Solution, and a one-time purchase of 1000.

Summary
The biggest value out of this MK Point is the lack of a need to pay money for the first Glue Gunner placed. This in turn makes early-game much more easy to manage, especially in game modes that require the need to save money. However, it has competition with Bonus Monkey!, due to that MK's better early-game greed value towards early income sources. To make up for this, 2-0-0 Glue will be able to be bought on the spot on any game mode except Half Cash, provided More Cash is unlocked.

While the Bonus Glue Gunner MK mainly affects the early-game, a Monkey City's free Dart Monkeys will not void the free Glue Gunner.

Tips

 * This MK is very useful on Impoppable due to how much it saves for the early game solo.
 * Plan the placement of the Glue Gunner carefully, as selling it will refund no cash.
 * In most cases, the free Glue Gunner can be safely kept around at any point of the game. The only exceptions to this are if the player is trying to utilize the discount portion of the "Come On Everybody!" MK, or on a map where Primary Monkeys are generally subpar.
 * If the player is planning to use something like MOAB Glue in their strategies, the free Glue Gunner can save some money at the start.

Trivia

 * "Bonus Glue Gunner" uses a similar vein to "Bonus Monkey!", the free portion that is.
 * The silhouette protrayed in the Bonus Glue Gunner artwork is a 0-0-1 Glue Gunner, due to the shape of its forehead portion bulging out slightly.