Icy Caves

 is the tenth episode of Angry Birds Space: Save our Galaxy. There are forty normal levels, four Space Egg levels and one trophy level.

Levels
Although it has plenty of easy levels, this episode is considered one of the hardest episode in an entire game. It has 6 insanely hard levels, namely 10-3, 10-8, 12-12, 12-31, 12-34, and 10-13, which is an impossible level and the hardest level in the game. Besides, levels 10-18, 10-19, 10-23, and 10-28 are also very hard in the episode. This episode has a huge cluster of six hard levels: 10-8 thru 10-13.

First Page
The first page contains 9 levels. This page is generally easy, though level 10-3 and 10-8 are insanely hard  and 10-1 and 10-9 are hard.

Second Page
The second page contains 10 levels. This page is hard since levels 10-12 and 10-13 are incredibly difficult, 10-18 and 10-19 are very hard and 10-16 are hard. However, there are some extremely easy levels.

Third Page
The third page contains 10 levels. This page is fairly easy because plenty of very easy levels. However, it has some hard levels: 10-23, 10-24, 10-25, and 10-28.

Fourth Page
The last page contains 11 levels and one trophy level. This page is generally medium. Level 10-31 and 10-34 are insanely hard levels. Leftover levels are easy or medium.