Boss list:
00:29 Boss 01 Ghost Rex (Plant Kingdom)
03:02 Boss 02 Ghost Pendulum (Machine Labyrinth)
05:02 Boss 03 Ghost Kraken (Coral Cave)
07:05 Boss 04 Ghost Pirate (Haunted Ship)
09:04 Boss 05 Ghost Whale (Blizzard Peaks)
11:49 Boss 06 Ghost Condor (Sky Babylon)
14:45 Boss 07 Captain Whisker & Johnny (Pirates' Island)
17:32 Boss 08 Ghost Titan (Big Swell)
22:50 Boss 09 Egg Wizard (Deep Core)
27:48 Ending

Is it just me, or were the bosses in this game more creative than usual?

You know the bosses will be great when they start with a robotic T-Rex

Ah 3D models on the DS. Such a nostalgic sight.

This entire games soundtrack was fire from beginning to end

00:29 Boss 01 Ghost Rex (Plant Kingdom)
03:02 Boss 02 Ghost Pendulum (Machine Labyrinth)
05:02 Boss 03 Ghost Kraken (Coral Cave)
07:05 Boss 04 Ghost Pirate (Haunted Ship)
09:04 Boss 05 Ghost Whale (Blizzard Peaks)
11:49 Boss 06 Ghost Condor (Sky Babylon)
14:45 Boss 07 Captain Whisker & Johnny (Pirates' Island)
17:32 Boss 08 Ghost Titan (Big Swell)
22:50 Boss 09 Egg Wizard (Deep Core)
27:48 Ending

All bosses had completely different mechanics and that's what i love from this game!

This is when Dimps had creative control on making 2d Sonic game.
I miss Dimps.

Oh boy, the memories!
This game, along with Sonic Rush and Sonic Colors, marked my childhood!

And marine was never seen ever again. The end.

This game needs a remake in Full Hd or UHD

Gotta admit, I never thought to use Tricks on the Ghost Condor to stay up in the air. Learned something new from this.

I really loved the boss variety of this game, each were unique to the level they debut in and required the player to use different tactics to prevail.

I loved how this game had you deliver a finishing blow to a boss instead of the boss fight just ending when its health hit zero, and if you failed to do so, it would get back up and regain some of its health.

0:00 - Intro
0:29 Egg Rex (Plant Kingdom Zone)
3:02 Egg Pendulum (Machine Labyrinth Zone)
5:02 Egg Kraken (Coral Cave Zone)
7:05 Egg Pirate (Haunted Ship Zone)
9:04 Egg Whale (Blizzard Peaks Zone)
11:49 Egg Condor (Sky Babylon Zone)
14:45 Captain Whisker & Johnny (Pirates' Island Zone)
17:32 Egg Titan (Big Swell Zone)
22:50 Egg Wizard (Deep Core Zone)
27:48 Ending

Ah yes the good days of me playing this in 2012
Nostalgia is real

I really like the fact that bosses take so many hits in this game. Any other sonic game would just make each cycle count for one hit, and have the boss go down in like 4. But the way this game does bosses makes them feel way more eventful. Kinda like Beat Em Up bosses.

When I first played this game, I got to the final boss. My 3DS had broken shoulder buttons, so I couldn't switch to Blaze.

I beat the final boss.
With only Sonic's Shield.

Sonic Rush Fan Game: Sonic Rush United!
3:01 Cybertron Route Boss: Egg Pendulum
7:05 Frankenstein Manor Hideway Boss: Egg Frankenstein
0:29 Rainbow High Route Boss: Egg Tyrannosaurus
5:01 Aquarium Run Boss: Egg Octopus
9:04 Pokemon Ice World Route Boss: Egg Whale
11:49 Max Steel City Boss: Egg Chimera
14:45 Metal City Boss: Dr. Eggman & Metal Sonic
17:32 Halifax Enterprises Building Boss: Egg Spider
23:51 Firey Hell Alton Towers Resort Boss: Egg Dragon