Megadimension Neptunia VII

[エメベアー]

https://store.steampowered.com/app/460120/Megadimension_Neptunia_VII/

Native: Story, Gameplay
Cheated: Visual Only

Natively:
In this game, there are 5 giantess bosses that you fight in the game (Dark Purple, Dark Black, Dark Green, Dark White and Dark Orange).

They are so large that the battles have their own stage and set of rules for battle, and when they attack, they usually hit a large area (The design is mostly the same for all of them, same for the fights).

Cheated:
In the VGGTS website (https://vggts.pikachu.moe/where/index.htm), there is a group of Cheat Engine scripts that allow you to change the scale of all playable characters, these affects every situation where the model is shown including: The world map, walking in dungeons, battle, menus,

The effect is visual only, but considering the turn based nature, you can take some good screenshots.