Hitting the self destruct button

I suspect we've all played games where we've blundered quite early on. Usually this is dropping a pawn (or a piece in a few of my efforts), but it is pretty rare to allow a mating attack starting on move 4. In this game from the current European Championship I suspect Black thought that 3... h6 would prevent 4.Ng5, but he missed the far stronger followup.

Trajkovski,Mile (2105) - Bytyqi,Gzim (1994) [B00]
20th ch-EUR Indiv 2019 Skopje MKD (6.169), 24.03.2019