Psh. As a kid in a post-soviet country I hadn't seen a game manual up until PS3 days. Every single cartridge and disc sold there was just that. Best case scenario in a flimsy plastic case that would disintegrate in a couple of years. Had to rawdog the shit out of those games. Pure trial and error and perseverance.
Stuck? Try every possible button combination in every location that makes any sense.
For example, couldn't finish Tiny Toon Adventures: Buster's Hidden Treasure on Mega Drive (Genesis) because I didn't know you can jump off walls. Finished it earlier this year though 🙃
Not to brag, but my brother and I passed the garage test mission in Driver (PS1) as kids. Now that I think about it, I should put it on my resume.
I think 2h is optimal. Not too long, but can still fit a proper story with enough time for development.
90 minutes is enough for children/family movies
The user's name is literally "evil edgelord", it's entirely on you for wondering.