Here is the full list of all 15 Raiden Legacy - there are Steam Edition achievements.
Die more than 150 times (across all games)
Score 50,000,000 pts in any Raiden Fighters game
Score 100,000,000 pts in any Raiden Fighters game
Complete the Arcade Mode of Raiden Fighters 2
Complete final level without dying!
Complete the final level without dying!
Use more than 500 bombs (across all games)
Complete the Arcade Mode of Raiden Fighters
Score 10,000,000 pts in any Raiden Fighters game
Complete the Arcade Mode of Raiden Fighters Jet
Complete Stage 1 (any game or difficulty)
Complete the Arcade Mode of Raiden
Play with all ships of Raiden Fighters Jet