Interspace Showdown
Episode: 4x01 | Airdate: Feb 13, 2011
Episodes
Mechtogan Mayhem
Episode: 4x02 | Airdate: Feb 20, 2011
Disconnect
Episode: 4x03 | Airdate: Feb 27, 2011
Fall From Grace
Episode: 4x04 | Airdate: Mar 6, 2011
Tri-Twister Take Down
Episode: 4x05 | Airdate: Mar 13, 2011
Agony of Defeat
Episode: 4x06 | Airdate: Mar 20, 2011
BakuNano Explosion
Episode: 4x07 | Airdate: Mar 27, 2011
Return to New Vestroia
Episode: 4x08 | Airdate: Apr 3, 2011
Chaos Control
Episode: 4x09 | Airdate: Apr 10, 2011
A Royale Pain
Episode: 4x10 | Airdate: Apr 17, 2011
Back in Sync
Episode: 4x11 | Airdate: May 1, 2011
Mind Search
Episode: 4x12 | Airdate: May 8, 2011
Re-Connection
Episode: 4x13 | Airdate: May 15, 2011
Triple Threat
Episode: 4x14 | Airdate: May 22, 2011
Interspace Under Siege
Episode: 4x15 | Airdate: May 29, 2011
A Hero Returns
Episode: 4x16 | Airdate: Jun 5, 2011
Gundalia Under Fire
Episode: 4x17 | Airdate: Jun 12, 2011
Battle Lines
Episode: 4x18 | Airdate: Jun 19, 2011
Unlocking the Gate
Episode: 4x19 | Airdate: Jun 26, 2011
True Colours
Episode: 4x20 | Airdate: Jul 3, 2011
Dangerous Beauty
Episode: 4x21 | Airdate: Jul 10, 2011
Unfinished Business
Episode: 4x22 | Airdate: Jul 17, 2011
Behind the Mask
Episode: 4x23 | Airdate: Jul 24, 2011
Interspace Armageddon
Episode: 4x24 | Airdate: Jul 31, 2011
Dark Moon
Episode: 4x25 | Airdate: Aug 7, 2011
The Final Takedown
Episode: 4x26 | Airdate: Aug 14, 2011
Evil Arrival
Episode: 4x27 | Airdate: Sep 10, 2011
Wiseman Cometh
Episode: 4x28 | Airdate: Sep 17, 2011
Mysterious Bond
Episode: 4x29 | Airdate: Sep 24, 2011
Prodigal Bakugan
Episode: 4x30 | Airdate: Oct 1, 2011
Combination Impossible
Episode: 4x31 | Airdate: Oct 8, 2011
Enemy Allies
Episode: 4x32 | Airdate: Oct 15, 2011
Battle for Bakugan Land
Episode: 4x33 | Airdate: Oct 22, 2011
Gunz Blazing
Episode: 4x34 | Airdate: Oct 29, 2011
Battle Suit Bash
Episode: 4x35 | Airdate: Nov 5, 2011
Countdown to Doomsday
Episode: 4x36 | Airdate: Nov 12, 2011
The Eve of Extermination
Episode: 4x37 | Airdate: Nov 19, 2011
Jump to Victory
Episode: 4x38 | Airdate: Nov 26, 2011
Enemy Infiltration
Episode: 4x39 | Airdate: Dec 3, 2011
Gunz Lives
Episode: 4x40 | Airdate: Dec 10, 2011
Evil Evolution
Episode: 4x41 | Airdate: Dec 17, 2011
Evil vs. Evil
Episode: 4x42 | Airdate: Dec 31, 2011
Doom Dimension Throwdown
Episode: 4x43 | Airdate: Jan 7, 2012
Blast from the Past
Episode: 4x44 | Airdate: Jan 7, 2012
Beginning of the End
Episode: 4x45 | Airdate: Jan 7, 2012
The End of the Line
Episode: 4x46 | Airdate: Jan 26, 2012