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In Kirby Super Star Ultra, there is a "Theater" option on the game selection menu. Inside are numerous movies you can unlock and view anytime. These are mostly the same cutscenes you can find in sub-games, but a few (marked in bold) are exclusively found here.

No.	Name	Unlock
01	Grand Opening	Available from start
02	Spring Breeze	Available from start
03	Tomorrow's Wind	Clear Spring Breeze
04	Dyna Blade	Unlock Dyna Blade
05	Live Healthy	Clear Dyna Blade
06	Gourmet Race	Unlock Gourmet Race
07	Great Cave Offensive	Unlock Great Cave Offensive
08	Great Escape-Hero Up High	Clear Great Cave Offensive
09	Revenge of Meta Knight	Unlock Revenge of Meta Knight
10	Halberd Scenes 1-3	Clear Revenge of Meta Knight
11	Halberd Scenes 4-6	Clear Revenge of Meta Knight
12	Halberd Scenes 7-8	Clear Revenge of Meta Knight
13	Friends and Sun	Clear Revenge of Meta Knight
14	Milky Way Wishes	Unlock Milky Way Wishes
15	Marx's Mad Plan	Clear Milky Way Wishes
16	To the Battlefield	Clear Milky Way Wishes
17	Kirby's Triumphant Return	Clear Milky Way Wishes
18	Staff Credits	Clear Milky Way Wishes
19	Revenge of the King	Unlock Revenge of the King
20	Flying Fortress Kabula	Clear Revenge of the King
21	The King and the Sun	Clear Revenge of the King
22	The Arena	Unlock The Arena
23	Helper to Hero	Unlock Helper to Hero
24	Meta Knightmare Ultra	Unlock Meta Knightmare Ultra
25	Knight's Story Scenes 1-3	Clear Meta Knightmare Ultra
26	Knight's Story Scenes 4-6	Clear Meta Knightmare Ultra
27	Knight's Story Scenes 7-8	Clear Meta Knightmare Ultra
28	Galactic Knight	Clear Meta Knightmare Ultra
29	Knight's Triumphant Return	Clear Meta Knightmare Ultra
30	Hidden Staff Credits	Clear Meta Knightmare Ultra
31	Fly! Meta Knight	Clear Meta Knightmare Ultra
32	The TRUE Arena	Unlock The True Arena
33	Marx Soul Appears	Clear The True Arena
34	Special-Edition Blooper Reel	Clear The True Arena
35	Kirby Master!	Gain 100% game completion
00	Original Kirby Movies	Clear Helper to Hero with all 20 Helpers