i need help on the hidden trophies

[Dysmarina]

ive got all the trophies in hm1 except for the hidden achievements and idk what it is i looked all over but cant seem to find it please tell me the 2 hidden achievements

[BatmanKaiser]

There're way more than just two hidden achievents in HM1, so you'll need to be a little bit more specific.
Have you scored an A+ on every single level of the game?

[Frente Radical]

Do you have the alligator mask? If not go to chapter 5, clear the level but DON'T go to the car yet, in the floor near the entrance door there will be a crowbar and you need to get it, after that go around the house and in the back of the house there will be a sewer cover, go in it and get the alligator mask, go to the car and you will unlock the "sewer alligator achievement". If you do not achieve it at first complete the level and do it again. (btw sorry for bad grammar english is not my speciality )

[Skymirrh]

Here is the list of all achievements, including hidden ones: https://hotlinemiami.fandom.com/wiki/Achievements