This is the route guide for Alice's route: https://www.deviantart.com/the-murp/art/Alice-Route-Guide-Growth-Academy-1236746...
The likely last check that might not have triggered is the requirement to do all of the possible optional scenes. This includes all of the music scenes (WG001M-WG005M), all of the crossover scenes (WGGTS, WGBE, WGFMG and WGAE). It's intended to be a high bar to pass, but if you are wanting to still experience the scene without redoing the route or are still unsure of what scenes were missed that you can also load, you can access through the debug menu to load WG103G.