First of all, I totally sang along and was reminded of that one time I was in highschool and got in an argument with somebody on the school bus because they swore up and down that there was no "woo-oo" in this theme song and I was all like "yes there was!"
Secondly,
F-- All the Ducktales games...they were hard! we had the NES game which I could barely do even as an older teenager when for some reason we randomly pulled out the NES again.
Also had the one on the sega gamegear...dude like..the first bear boss was practically impossible and if I managed to beat it (without the battery on the thing dieing first) I couldn't get past the next section.
and then we also had the one on the Amega computer

and I'm sure this would not have been so hard if I wasn't like..3 years old and could read.