Normal (On-Track)

Normal is a Targeting Priority appearing since Bloons TD 4. It is historically associated with the Spike Factory. It is the default targeting priority for the Spike Factory in Bloons TD 6, while in previous games it was its only targeting priority. Normal targeting lets the affected tower spew on-track projectiles onto random track spots in its range.

In the BTD5 Generation, the Engineer Monkey's Path 2 upgrades like Cleansing Foam and Bloon Trap also carried this priority. Bloon Trap's targeting priority was changed to Close in Bloons TD 6, while Cleansing Foam kept its Normal targeting.

Bloons TD 6 introduced additional upgrades with Normal targeting. Caltrops thrown by the Ninja Monkey always use Normal targeting. Gwendolin's Cocktail of Fire in addition to Obyn Greenfoot's totems, brambles, and Wall of Trees will default to Normal targeting if there are no bloons in the hero's range. However, if there are bloons in the hero's range, they will be placed according to the main hero's targeting. On the other hand, Wall of Fire used to default to Normal targeting until version 25.0, which defaulted it to Close.