By using Urotsuki's computer, the player can choose between one of several different Menu Themes, which change the design of the menu frame. Menu themes can be selected through the tools menu on Urotsuki's Computer. There are currently 21 total in the game; at the start of the game, Urotsuki has 5 to choose from, and she can unlock more themes by interacting with special NPCs & objects throughout the dream world. These include the Eggs, special collectibles that first appeared in 0.100h, placed in specific areas of Wataru's maps.
There are currently 15 unlockable menu themes in the game, 8 of which are egg themes, as well as a temporary menu theme as of 0.107b, that once granted will not appear on the Menu Theme page.
Each Menu Theme is listed below in order according to the computer menu, along with a brief description of where they can be found.
 Theme 0 |
Developer Room | Obtainable from the Developer Room | |
 Theme 1  Theme 2  Theme 3  Theme 4  Theme 5 |
Urotsuki's Room | Default themes | |
 Theme 6  Theme 7 |
Bleak Future | By interacting with the boy twice, you will receive both of these themes. | |
 Theme 8 |
Hidden Shoal | You can find one egg here. | |
 Theme 9 |
Forest Pier | You can find one egg here. This egg is in the Southern Area, around the giant half-buried sun statue. | |
 Theme 10 |
Planetarium | There's one egg in the scenery area. You can reach this place via Deserted Town. | |
 Theme 11 |
Factory Garden | There's one egg in the bottom to the map, you only need get off all the stairs in the Industrial Maze. You can reach this place via Arc De Pillar World | |
 Theme 12 |
Rose Church | You can find one egg here. | |
 Theme 13 |
Neon Aquatic Cavern | There's one egg in this place. This place can be reached by going to the Factory Garden, find the Aquarium building in the Overgrown City, pass the Victorian Drains, and finally, getting into the boat, find that egg in the Bioluminescent Cavern. | |
 Theme 14  Theme 15 |
Depths | You can find two eggs here. One can be found in the Aquarium and the other is in the deepest part of the Depths. | |
 Theme 16 |
Guts World | Going through the room with the clown in the grey building leads to a cramped storage room with a glowing pumpkin in it, which will give you a menu skin if you interact with it. After you have taken the theme, it will turn back into an ordinary orange pumpkin. | |
 Theme 17 |
Maple Shrine | At the end of the maze is a smiling orange head creature that will give you a theme. It does not disappear after obtaining the menu theme. | |
 Theme 18 |
Pencil World | After interacting with all four paintings, enter the rainbow tree picture. By using the Rainbow effect in the white scene to turn it colorful, a leaf will fall down from the tree, giving you a new theme. | |
 Theme 19 |
Chocolate World | By interacting with the chocolate fountain, the screen will be briefly covered with liquid chocolate and you will be given the theme. | |
 Theme 20 |
Saturated Eyeball Zone | Killing this NPC will instantly replace your current menu theme with the eyeball theme, but it won't be added to the tools menu in the Computer. The NPC dies permanently, so you can only get it once, and it will be gone forever if you change your menu theme afterwards. | |
| Stone Towers | Through navigation of the second stone tower, one can find a well. In said well is a stone egg that gives you this theme. |
