Here is the full list of all 12 Spelunker Collection trophies - there are 7 bronze, 4 silver and 1 gold.
Finished the first level in "Spelunker" (Console)
Finished the first level in "Spelunker" (Arcade)
Finished the first level in "Spelunker II 23 keys" (Arcade)
Finished the first level in "Spelunker" (Original)
Reached the final goal in "Spelunker" (Console)
Reached the final goal in "Spelunker" (Arcade)
Reached the final goal in "Spelunker II 23 keys" (Arcade)
Reached the final goal in "Spelunker" (Original)
Reached the final goal without a miss in "Spelunker" (Console)
Obtained same item for 3 continuous times with miracle "Spelunker" (Console)
Reached the final goal in "Spelunker" (Arcade) without using all keys
Obtained 10000pts diamond "Spelunker" (Console)