He told his friend about the game. I don't think he would have done so if he copied or felt he had "stolen" anything. If he remade the game with this own code and assets then he put a lot of work into it and he can be proud of that (and telling his friend shows that he was). Comparing the game, i do think the clone is better made / more polished. So he really like the game and made a better version of it. I don't think that's a bad thing. IP has to be respected (can't just copy assets or code) but if that's the case then anything goes and that's a good thing, it gives us better games.
Think PalWorld, for example, Nintendo, one of the most copyright abusing companies in the world, doesn't sue them and it's arguably a better game than anything Nintendo has come up with recently (no new / modern / good / 3D Pokemon games).
Wow, ADFC hasst wirklich die eRoller. Schade dass man ein eRoller nicht einfach als andere Art von Fahrrad begrüßt. Ein 12kg eRoller ist also angeblich gefährlicher als ein 100kg eFahrrad welches mit >25km/h unterwegs ist? Hoffe mal das die Anpassungen wie vorgeschlagen eingeführt werden.