The linked route shows what items to spawn on which level. This is my preferred route at the moment, but there could definitely be better ones out there. Since the common items are dependent on food, bubbles, and time (very easy things to lose track of during a run), JohnnyGo clipped examples of his level practice for each level to give an idea of what the level could look like to achieve the route. There's room for optimization there too, but are great starting points. Huge thanks to JohnnyGo for all those clips and for the deep diving he's done on the game's code!

https://docs.google.com/spreadsheets/d/1gWUVdXbNsaDn4aMOBpF3m2HOInta4OLcsV07YATzZ_4/edit?usp=sharing