Ben 10: Ultimate Alien — 2010-2012 · 3 seasons · 52 eps

★ 7.8

Ben 10: Ultimate Alien poster

Ben 10: Ultimate Alien

2010-2012 3 seasons 52 episodes

★ 7.8 (14,441 votes) Top 36%

With his secret identity now revealed to the world, Ben Tennyson continues to fight evil as a superhero with the help of the newly acquired Ultimatrix.

Episode Ratings Grid

Every episode at a glance, color-coded by rating. Rows are episode numbers within each season, columns are seasons.

Size: M

S1

S2

S3

E1

7.7

7.5

8.0

E2

6.7

6.8

7.3

E3

7.9

6.7

8.1

E4

7.0

6.9

7.7

E5

8.4

7.2

7.6

E6

8.1

7.6

7.7

E7

7.8

7.4

8.6

E8

8.2

7.5

6.3

E9

7.8

9.0

5.1

E10

8.4

8.8

7.8

E11

8.7

8.0

8.0

E12

6.7

8.3

7.9

E13

7.6

7.9

E14

8.3

7.6

E15

8.8

8.1

E16

9.2

6.6

E17

8.0

8.4

E18

8.0

8.5

E19

8.6

8.8

E20

8.8

8.7

Avg

8.0

7.6

7.7

Excellent

Great

Good

Mid

Bad

Episode Power Rankings

The best and worst episodes at a glance. Use this to find must-watch episodes or ones you might want to skip.

🏆 Top Episodes

#1 9.2

S1E16 The Forge of Creation

As the team makes its final attempt to stop Aggregor, they find an unexpected ally, and one person will make a fateful decision with lasting repercussions.

#2

S2E9 9.0

It's Not Easy Being Gwen

Gwen has always been a multi-tasker, trying to juggle school, hobbies, friends and her work as a hero, waking up early and going to sleep late. But Gwen's already packed day is about to get worse when Dr. Animo attacks with an army of giant frogs and Gwen is forced to make a hard choice.

#3

S1E15 8.8

Perplexahedron

With the fourth piece of the Map of Infinity almost in Aggregor's clutches, the gang chase him through the artificial planetoid known as Perplexahedron.

4. S1E20 "Absolute Power: Part 2" 8.8
5. S2E10 "Ben 10,000 Returns" 8.8
6. S3E19 "The Ultimate Enemy: Part 1" 8.8
7. S1E11 "Map of Infinity" 8.7
8. S3E20 "The Ultimate Enemy: Part 2" 8.7
9. S1E19 "Absolute Power: Part 1" 8.6
10. S3E7 "Ultimate Sacrifice" 8.6

📉 Bottom Episodes

#52

S3E9 5.1

The Mother of All Vreedles

Ma Vreedle goes to Earth to expand her family by creating clones and using all the water on Earth.

51. S3E8 "The Widening Gyre" 6.3
50. S3E16 "The Egg Man Cometh" 6.6
49. S2E3 "Viktor: The Spoils" 6.7
48. S1E12 "Reflected Glory" 6.7

The Quality Arc

Each point is an episode, plotted chronologically. The colored bands mark season boundaries. Look for upward or downward trends to see if quality improved or declined over time.

Trend

Episode Engagement

Vote count shows how many people cared enough to rate. High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

Rating threshold:

25 Standouts

2 Infamous

15 Hidden Gems

10 Forgettable

Top Standout: S1E16 The Forge of Creation

Most Infamous: S1E2 Duped

Best Hidden Gem: S3E3 Greetings from Techadon

Episodes plotted by rating vs. vote count. The vertical line marks the rating threshold (7.5). More votes = more engagement. Toggle above to compare against global or show-specific median.

Series Trajectory

A simplified view: one point per season. This smooths out episode-to-episode noise to show the overall arc of the series.

Trend

Season Momentum

Did each season build momentum or fizzle out? Green arrows mean the finale rated higher than the premiere. Red means the opposite. Longer arrows = bigger swings.

Season Consistency

Some seasons are reliable bangers. Others are hit-or-miss. Each dot is an episode. Tightly clustered dots mean consistent quality. Scattered dots mean a mixed bag.

Each dot is an episode. Clustered dots = consistent quality. Scattered dots = variable season. Hover for episode details.