Bloons Tower Defense 4

Bloons Tower Defense 4 cranks up the chaos with stunning visual upgrades, tons of new towers, and relentless bloon waves. Originally released in late 2009, this Flash classic from Ninja Kiwi delivers a more polished and expansive tower defense experience, complete with unlockable modes and special towers. With over 15 tracks, multiple game modes, and flashy animations, it’s a nostalgic trip—and still wildly addictive!

How to play Bloons Tower Defense 4

BTD4 is where the series truly evolved, bringing deeper strategy, more variety, and faster gameplay. Whether you’re a veteran or newcomer, here’s how to pop like a pro.

Objective

Your goal is to stop bloons from reaching the end of the track by building a variety of towers. Earn cash by popping bloons, and reinvest it into upgrades or new defenses. Complete all rounds on a map to win!

Controls

• Desktop (Keyboard & Mouse): Use the mouse to place towers, upgrade them, and interact with the UI. Press spacebar to fast-forward or launch the next round, depending on the mode.
• Mobile: Tap to select towers, drag to place them. Some interface elements may be small, so a tablet or large-screen device is ideal for smoother gameplay.

Towers & Upgrades

BTD4 introduces advanced towers like the Monkey Ace, Mortar Tower, and Banana Farm, each with two upgrade paths. The game also includes Specialty Buildings and Rank Unlocks, which add strategic depth and progression.

Key tower categories:

• Attack: Dart Monkey, Tack Shooter, Cannon, Super Monkey
• Support: Glue Gunner, Monkey Beacon, Ice Tower
• Advanced: Monkey Ace, Mortar, Dartling Gun

Game Modes

Play across multiple modes:

Easy, Medium, Hard: Adjusts lives, bloon speed, and starting cash

Sandbox Mode: Test out towers with unlimited cash

Apopalypse Mode: Endless bloon waves without breaks

Some modes are unlocked by ranking up through gameplay.

Tracks & Difficulty

BTD4 features over 15 tracks with varied layouts and challenge levels. Some are unlocked as you rank up, and many have dynamic elements like water or multiple paths.

FAQ

Can I still save progress or buy premium content in BTD4?

No. As this is the legacy Flash version, saving to a Ninja Kiwi account and premium content purchases are no longer supported. Progress will only save locally if your browser settings allow it.

What’s new in Bloons TD 4 compared to previous versions?

BTD4 introduces more towers, two upgrade paths per tower, unlockable modes, better graphics, and a ranking system. It’s significantly more complex and replayable than its predecessors.

Can I play Bloons TD 4 without Flash?

Yes! On PEXY.IO, the game runs in-browser using a secure Flash emulator. No downloads or plugins are required.

Is there a way to skip or speed up rounds?

Yes. Press the fast-forward button or use the spacebar to speed up rounds and keep the action flowing.

Can I play it on mobile?

It’s playable on most mobile browsers, though the Flash-based interface is best experienced on larger screens for accurate control.