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Bloons Wiki

Sound the alarm to temporarily increase the speed of nearby characters and slow nearby bloons.
~ BATTD description
Icon warning horn

Warning Horn ability icon

The Warning Horn is a Super Rare Trinket in Bloons Adventure Time TD. It has no character restrictions, letting any character equip it.



Special Properties[]

Adds an active ability slows down bloons by 20% and speeds up towers by 20% while in the equipped character's range. Lasts 15 seconds, 60 second cooldown.


The Warning Horn's description states that all special effects will happen nearby the equipped character, so it is recommended to equip this trinket to characters with high range such as Supermonkey to extend the range.

The Warning Horn, although a speed boosting trinket does not affect the wielder, so do not equip this to characters significantly slow, rather equip it to characters who are already agile and won't be favourable if the effect is used on them.

The Warning Horn works similarly to Plasma Goggles, due to Sam-glitch or Commander Cassie-glitch that happens when repetitively using it's ability, this is also applicable to the Warning Horn greatly beneficially stack the increase of speed statistics of towers and slow all bloons. This glitch has a great synergy to use with Commander Cassie, since she has larger range. This is one of the best abilities to use in late-game rounds in Martian Games and general purposes with or without the glitch.

If you have four characters near each other with this ability, you can chain their abilities indefinitely to get a "permanent" effect, provided all the towers equipped have a similar range.


  • TBA