Generally, Quad Darts is used as an early-game upgrade when using the Base Heli Pilot. Similarly to the lower tier, the Base Heli Pilot finds most use on long tracks and maps where the infinite range is appreciated.
Quad Darts has not been changed since it was first released, but it's now more expensive compared to its BTD5 counterpart.
- Initial release
- Quad Darts costs more ($600 → $800).
||Heli Pilot manages on pursuit far too easily without any need to consider Bigger Jets unless camo or downdraft is required. For more crosspath variety than just 'camo' we moved more of the base Heli speed out and back into Bigger Jets with an overall buff to Bigger Jets. This should allow Bigger Jets to scale a little better than other helis through early speed ramping. [...]
||~ Ninja Kiwi, referring to base Heli flight speed versus Bigger Jets
- Affected by base Heli flight speed nerf versus Bigger Jets crosspathing