Help Curating Game List for Gift

Hey everyone, I'm looking for critiques on my games list here. I've been casually enjoying retro gaming for the past year and my friend wants his kids to play some. He has two boys a few years apart but no older than 8 I think. I'm planning to surprise him with a POWkiddy RGB10X pre-configured with some games I think young kids would enjoy. This is where I need some help finalizing the list. I'm at a little over 30 games which I think is maybe too many but I want them to have a wide variety of genres and franchises to enjoy. What might you change or suggest?

• Donkey Kong (NES or GBA)
• Ridge Racer Type 4 (PS1)
• Diddy Kong Racing (N64)
• Super Mario 64 (N64)
• Super Mario Bros. 3 (SNES)
• Metal Gear Solid (PS1)
• Pokémon Emerald (GBA)
• Pokémon Crystal (GBC)
• Pokémom Leaf Green (GBA)
• Pokémon Pinball (GBA)
• Super Smash Bros. (N64)
• Metal Slug X (PS1)
• Contra: Hard Corps (Genesis)
• Super Metroid (SNES)
• Banjo-Kazooie (N64)
• Donkey Kong Country 2 (SNES)
• SoulCalibur (DC)
• Crash Bandicoot: Warped (PS1)
• Spyro 1 (PS1)
• Rayman (PS1)
• Wipeout 3 Special Edition (PS1)
• ACE Combat 3 (PS1)
• Oddworld: Abe's Oddysee (PS1)
• Digimon World (PS1)
• Sonic 3&K (DC)
• Kirby & the Amazing Mirror (GBA)
• Zelda: A Link to the Past & Four Swords (GBA)
• 1943 (NES)
• Earthbound Patched (SNES)
• Chrono Trigger (SNES)
• TMNT: Turtles in Time (SNES)
• Tetris (NES)
• Pacman CE demake (NES)

PS.

• He specifically mentioned Donkey Kong, though not any game specifically, as well as he personally enjoyed OddWorld as a kid so I threw that in there.
• Maybe remove Contra and leave only Metal Slug?