If the shot is supposed to play like a reverse block, you really have three options. As has already been mentioned, test the outside to see if there is any recovery out of that puddle. If there is, that may work as long as you can keep the ball from going sideways or completely puking when it hits the dryer inside boards.
Second, you can use speed and/or a ton of forward roll to play a hard and straight line to the hole from the middle. I see a lot of this at ABT tournaments in my area. The outside is almost always OB, and there is all kinds of friction in the middle, so firing the ball up the lane between 13-17 can be an option. As the heads start to go, you will have to migrate inside more and more.
Third, as others have said, go way inside. From there you can play a skid-flip type of reaction while being careful not to miss into the puddle on the outside. If you do, you could have the dreaded moat monster on your hands! If you don't want to play that, you can play fall-back and keep the ball really tight to the pocket moving from inside to out. The trouble here is finding the combination of speed, revs, and ball choice that allows you to get the ball down the lane properly. As was mentioned, you may have to use a stronger-reacting ball than you would think in order to actually get some hitting power.
Any way you slice it, reverse blocks, or shots that mimic them, are not typically easy to deal with. Make aggressive shots, control the pocket, and try to avoid leaving designer splits. If this is scratch, you're not likely to see too many high scores, so do your best to stay clean and catch a little string here and there.
Good luck!
