For a quick dip of your toe into arcade gaming waters, you might be tempted to try Keymon Goes Fishing on your Nokia C5-03. We've done just that, and checked out how it stacks up for entertainment value. 

Check out our full Nokia C5-03 Review Roundup

Think of arcade games and you inevitably picture those button-bashing, joystick-twiddling big screen machines down at your local... well, arcade (hence the name, obviously!).

The mobile equivalent – as represented here by Keymon Goes Fishing – has to do without buttons, joystick and big screen, which is a shame as it limits the potential for high-octane gaming adrenaline.

Instead we have two chaps sitting in a boat casting a hook into the waters below to try and nab fish that swim across the screen from side to side at various depths. The fishing rod swings like a pendulum, and the hook descends in a straight line at an angle dependent on when you tap the screen.

The difficulty factor, such as it is, comes from the painfully slow progress the hook makes through the water, so you have to gauge an intercept point between hook and fish, and cast off in that direction well before the fish actually gets there.

Progression through the game involves reaching a points target by catching a certain number of fish in the time allowed, so you can move on to the next level and repeat the same process. As you go on, additional high-value fish are introduced for you to try and catch, as are obstacles and negative-value items such as empty cans and diving gear that lower your score if you nab them.

It's fairly tried and tested stuff, but Keymon stays just on the right side of interesting despite some fairly serious limitations: for starters, as we've mentioned the action is incredibly slow. And once you've got the hang of the timing, it's also fairly easy. The problem is that there's no choice of difficulty, and once you hit your points target on each level, you carry on fishing for the remaining time, effectively building points towards the next level's target. In other words, once you get ahead you stay ahead, and the only real interest lies in seeing if the next level introduces any interesting new fish or challenges.

Fifteen levels later, you're done, and you'll probably carry on with your life without coming back to Keymon Goes Fishing. It's still not a negative experience overall, we should point out. Just don't expect anything particularly challenging.