Awarded after completing the third game online.

Awarded after the first online victory. See this thread if necessary to find a boosting partner.

This trophy is cummulative. A spare is when you knock down all 10 pins on the second attempt.

This trophy is cummulative. A strike is achieved by knocking down all 10 pins in one go. See 150 Strikes for tips on how to get strikes.

This trophy is cummulative and unlocks when you pass the 500 pin mark. You can check how many pins you have knocked down in the stats section of the online menu.

Trophy only unlocks after fully completing a game up to the end game scoreboard when you have a rating over 1600.

It's not exactly a missable trophy but it can be made more difficult unless you do the following. When you initially go online your online score starts at 1500 at this point the best method is to win 2-3 games to reach 1600. This can be done by finding a friend or boosting partner (see this thread) to allow you to win. Jump in an empty lobby together and start a game, as soon as the game starts your opponant can press start and choose to quit, this will give you the win be default, repeat 2-3 times. When you have reached 1600 you must then win and fully complete an entire game until the scoreboard appears at the end. The trophy will only then unlock. The reason for stating this is that if you were to start online and loose a few games your score will drop very quickly and is much more time consuming to build back up to 1600.

Trophy unlocks after you fully complete an online game with a score of over 180. (see section at the end of the guide regarding strike methods)

This trophy is cummulative. A strike is achieved by knocking down all 10 pins in one go. (see section at the end of the guide regarding strike methods)

Awarded after the 25th online victory. See this thread if necessary to find a boosting partner.

This trophy is cummulative and unlocks when you pass the 5000 pin mark. You can check how many pins you have knocked down in the stats section of the online menu.

Trophy unlocks after you fully complete an online game with a score of over 250. See 150 Strikes for tips on how to get strikes.

This trophy is cummulative. A strike is achieved by knocking down all 10 pins in one go.

Strikes - Tips, Tricks & Methods:
There are various ways of scoring strikes using many different characters/bowling balls/lanes/oil patterns. You may find a way of consistly scoring strikes as you play through and develop a technique yourself. Different characters/bowling balls & lanes are unlocked through completing the single player challenges, bowlers are also avaialble via DLC from the PSN store. A good consistant score/strike is required mainly for the "Score 250" trophy. Below are a few different methods, they may not be for the specific character you are using but can be adapted and tweaked to suit:

Mike with Black "F" ball, house oil pattern, Carl's alley
Start at the dot 2nd in from the left, aim to the dot nearest to the left edge of the alley. 1/2 spin with 1/2 to 3/4's power. Tweak till you find the ideal swing.

Tiffany and a ball with a "B" spin rating
Start at the dot farthest to the left and point the arrow to the dot just to the right of the center one. Both your spin and power should be in the green. Play around with the power and spin a bit until you find the zone.

Tiffany, blue ball (C+ spin)
Using the 9-pip layout aim from 2nd pip from left, at first pip right of centre.
Medium spin (about 50% of the height from bottom to top of arrow)
Medium speed, between 's' and 'e' in SpEed, somewhere hovering over the P.
Too much power (Above 'p') and you'll miss the headpin to the right, too little power and you've got a chance to hit the head dead on and get a split

For LH player - Mike with the skull ball.
Play on Joe's lane and start from a little bit to the left of the first dot on the left of the center, aim a little bit to the right of the dot on the left of the center. Give it perfect index finger curve and a little less than perfect speed. It takes a couple of games to find your niche.

Hiro "Black" F ball
Aim from far right dot to far right dot again. Hammerhead shaped oil pattern. 3/4 power, 3/4 to full spin.

Here are some videos of some strike methods: