Once the camera has panned over to Danger Mouse and Penfold's starting position, you shall have to pick up Penfold, and throw him over to a platform; once you have done so you will have to jump up to a second platform, drop down to the first platform, pick up Penfold and throw him so that he smashes through a stack of three boulders. You shall then have to switch to Penfold, drop down through the now-uncovered hole in the platform, crawl to the right over a closed trapdoor, throw a switch to open said trapdoor, and collect the first "DM" badge - and once you have done so, you shall have to crawl back to the left, fall down through the now-opened trapdoor onto a third platform and a fourth one in turn, jump onto three clouds in turn, walk onto the second step of a fifth platform, and collect the second "DM" badge. Once you have done it, you will have to drop down to the first step of the platform and a sixth platform in turn, crawl to the left over another closed trapdoor, and throw another switch to open said trapdoor; you'll then have to switch back to Danger Mouse, drop down to two more platforms in turn, jump back to the left onto a ninth platform, and collect the third "DM" badge (if Danger Mouse kicks out at the temple guardian on this platform Colonel K' will reappear to say "Remember, Danger Mouse, go easy on the little fellas!", to which Danger Mouse will reply "I will, Colonel - but do you think you could ask them the same?"). The temple guardians, who are all masked rabbits, cannot be killed by kicks.
You will then have to drop down to two more platforms in turn, drop through a third (already-opened) trapdoor to land on a twelfth platform, walk down a staircase, jump up to a thirteenth platform, and throw a third switch to move a mirror to the right (it will divert the beam of light to the right, killing another temple guardian as it hits him); once you have done so, you shall have to throw the switch again to move the mirror back to its original position. You will then have to switch back to Penfold, follow Danger Mouse's path (only instead of jumping up to that thirteenth platform, you will have to fall down onto a fourth cloud, jump back to the left onto three more clouds and a fourteenth platform, in turn, jump back to the left again to collect the fourth "DM" badge, and land on a fifteenth platform, and throw a fourth switch to drain the pool of water and move a second mirror downward - and once you have done so, Danger Mouse shall tell him "Good work, Penfold! I should be able to follow you down there, now. Let's see what's hidden in the depths of this temple!".
You will then have to jump back to the right onto the fourteenth platform, drop down to a sixteenth platform and throw a fifth switch to unlock the door in front of you; once you've done so, you'll have to drop down to the ground, switch back to Danger Mouse, follow Penfold's path (only instead of dropping down onto the fourth cloud, Danger Mouse shall fall through it, and land on a seventeenth platform below it, and you'll have to jump up to an eighteenth platform, collect the fifth "DM" badge, retrace the path back to the seventeenth platform and walk to the left down another staircase to drop down to the ground), pick up Penfold and throw him so that he smashes through another stack of two boulders. You will then have to jump up to a vertically-moving platform and two more platforms in turn and throw a sixth switch to move a third mirror downward (it'll again divert the beam of light to the right, killing a third temple guardian as it hits him) - and once you have done so you will have to throw the switch again to move the mirror back to its original position. You'll then have to drop down to the ground, walk up a third staircase, jump back to the left onto a twentieth platform, and collect the sixth "DM" badge; once you have done so, you will have to retrace your steps back to the vertically-moving platform and jump up to the first step of a twenty-first platform to collect the seventh "DM" badge. You will now have to walk up a fourth staircase, jump up to a twenty-second platform and throw a seventh switch to move a fourth mirror to the left (it shall divert the beam of light upward) - and once you have done so you will have to jump up to the second step of the twenty-first platform to collect the eighth "DM" badge. You will then have to drop back down to the first step of the platform, switch back to Penfold and follow Danger Mouse's path; once you have done so, you shall have to switch back to Danger Mouse, pick up Penfold and throw him up to the second step of the platform. You will now have to jump back up to the second step of the platform, drop down to its third step, jump onto two more platforms in turn and throw an eighth switch to drain the second pool of water and move a fifth mirror downward (Danger Mouse will say "Excellent, it's safe to drop down through that trap door now.", which is a reference to how even though he and Penfold could enter water in their show, they cannot in this game).
You will then have to jump onto another vertically-moving platform and a twenty-fifth platform in turn, and throw a ninth switch to move a sixth mirror to the left (it will divert the beam of light to the left, killing a fourth temple guardian as it hits him); once you have done so you will have to throw the switch again to move the mirror back to its original position. You shall then have to jump onto a twenty-sixth platform, walk up a fifth staircase, jump up to two more platforms in turn and collect the ninth "DM" badge - and once you've done so, you will have to jump up to two more platforms in turn and throw a tenth switch to unlock another door behind you. You'll then have to jump onto the first step of a thirty-first platform, drop down to its second step, jump onto a thirty-second platform and collect the tenth "DM" badge; once you've done so, you will have to walk up a sixth staircase, and throw an eleventh switch to move a seventh mirror to the left (providing you remembered to return the third, sixth and ninth switches to their original states after throwing them, Danger Mouse will say the text of: "Once the light beam hits the door, it should open right up!", to which Colonel K' will reply "That's the ticket!").
You must then retrace your steps back to the thirtieth platform, and jump back to the left to land on a thirty-third platform with the now-open door on it; once you've done so, you'll have to switch back to Penfold, follow Danger Mouse's path (only instead of jumping up to that twenty-third platform, you'll have to drop down to a fourth step of that twenty-first platform, drop down through a fourth already-opened trapdoor to land on a thirty-fourth platform, walk down a seventh staircase and up an eighth one before jumping onto that second vertically-moving platform, and on jumping up to the twenty-fifth platform, you shall have to jump onto an eighth cloud before you can jump onto the twenty-sixth and twenty-seventh platforms in turn). Once you have done it, you'll have to switch back to Danger Mouse, retrace your steps back to Penfold's current position, pick him up and throw him up to the twenty-eighth platform - and you shall then have to jump back up to the twenty-eighth platform, pick up Penfold and throw him up to the twenty-ninth platform. Once you have done so, you will have to jump back up to the twenty-ninth platform, pick up Penfold, and throw him up to the thirtieth platform; you will then have to jump back up to the thirtieth platform, pick up Penfold, and throw him back over to the thirty-third platform with the now-opened door on it before retracing your steps back there (but, if Penfold didn't land in front of the door, you must switch back to him, then walk back to the right until he's there). The "MISSION COMPLETE!" text shall then be displayed on the screen for the fifth time - and the duo shall then proceed onward to Episode 6.