(I'm co-working with Whiskey)
Here's an altered version that (I think) runs as it should, but I want the game screen to display without having to hold down the e or h key for difficulty level.

[code]import ddf.minim.*;
//Variable for background music.
AudioPlayer song;
//Variable for sound effect.
AudioPlayer eat;
Minim minim;

//Font variable for words on Game Over screen.
PFont loseDisplay;
//Font variavle for replay instructions
PFont replay;
//Font variable for score.
PFont score;
//Variable for current score.
int currentScore;

//Variable for keyReleased.
boolean value=false;
//Variable for gameOver screen.
boolean gameOver;

//Image variable for clouds image.
PImage clouds;
//Image variable for Bo.
PImage normalBo;
//Image variable for hurt Bo.
PImage hurtBo;
//Image variable for honey pots
PImage honey;
//Image variable for bees.
PImage bee;

//Array for three bees to move horizontally.
Bee[] beesX= new Bee[3];
//Array for three bees to move vertically.
Bee[] beesY= new Bee[3];

//Array for three honey pots to move horizontally.
Honey[] honeyX= new Honey[2];
//Array for three honey pots to move vertically.
Honey[] honeyY= new Honey[2];

//Bear object.
Bear bear;

void setup(){
 size(500,400);
 minim = new Minim(this);
 //Load songs.
 eat=minim.loadFile("BLOOPF05.aiff");
 song = minim.loadFile("62 - First Festival of Stars.mp3");
 //Play "First Festival of Stars".
 song.play();
 //Loop song 5 times.
 song.loop(5);

 //Game is not over.
 gameOver=false;

 //Load font.
 score=loadFont("KristenITC-Regular-100.vlw");
 //Set variable currentScore at 0.
 currentScore=0;

 //Load clouds image.
 clouds=loadImage("Game_bg.jpg");
 //Load bear image.
 normalBo=loadImage("Bear_icon_1.gif");
 hurtBo=loadImage("Bear_icon_3.gif");
 //Load honey pot image.
 honey=loadImage("Honey_icon.gif");
 //Load bee image.
 bee=loadImage("Bee_icon - Copy.gif");

 smooth();
 //Hide cursor.
 noCursor();

 //Initialize horizontal bees.
 for(int i=0; i<beesX.length; i++){
   beesX[i]=new Bee();
 }

 //Initialize vertical bees.
 for(int i=0; i<beesY.length; i++){
   beesY[i]=new Bee();
 }

 //Initialize horizontal honey pots.
 for(int i=0; i<honeyX.length; i++){
   honeyX[i]=new Honey();
 }

 //Initialize vertical honey pots.
 for(int i=0; i<honeyY.length; i++){
   honeyY[i]=new Honey();
 }

 //Create bear
 bear= new Bear(40);
}

void draw(){
 background(0);
 fill(0);
 textFont(score);
 text("Press E for Easy Mode or H for Hard Mode!", width/2, height/2);
   //If game is over, go to lose function
   if(gameOver==true){
     lose();
   }
 //otherwise, run the game.
   else if((keyPressed==true) && (key=='e') || (keyPressed==true) && (key=='E') || (keyPressed==true) && (key=='h') || (keyPressed==true) && (key=='H')){
     runGame();
   }
}

void keyReleased(){
 if((keyPressed==true) && (key=='e') || (keyPressed==true) && (key=='E') || (keyPressed==true) && (key=='h') || (keyPressed==true) && (key=='H')){
   value=true;
 }
}

//Function to run game.
void runGame(){
 //Set clouds image as background.
 background(clouds);
 //Center images.
 imageMode(CENTER);
 //Center ellipses.
 ellipseMode(CENTER);
 noStroke();

 //Center text.
 textAlign(CENTER);
 fill(0,100);
 textFont(score);
 //Write current score in middle of screen.
 text(currentScore,width/2,height/2);

 noFill();

 //Set up functions for 3 honey pots
 //to move horizontally and display.
 for(int i=0; i<honeyX.length; i++){
   honeyX[i].moveX1();
   honeyX[i].display1();
   //If bear image intersects honey pots from array honeyX
   if(bear.intersect(honeyX[i])){
     honeyX[i].caughtX();
     //Play eat sound when honey pot and Bo intersect.
     eat.play();
     //Reset eat sound.
     eat.rewind();
   }
 }


 //Set up functions for 3 honey pots
 //to move vertically and display.
 for(int i=0; i<honeyY.length; i++){
   honeyY[i].moveY1();
   honeyY[i].display1();
   //If bear intersects honey pots from array honeyY
   if(bear.intersect(honeyY[i])){
     honeyY[i].caughtY();
     //Play eat sound when honey pot and Bo intersect.
     eat.play();
     //Reset eat sound.
     eat.rewind();
   }
 }

 //Display bear and set location.
 bear.setLocation(mouseX,mouseY);
 bear.displayBear();

 //Set up functions for bees to move horizontally and display.
 for(int i=0; i<beesX.length; i++){
   beesX[i].moveX2();
   beesX[i].display2();
   //If bear intersect bees
   if(bear.intersect(beesX[i])){
     //show hurtBo and end game.
     bear.displayHurt();
     gameOver=true;
   }
 }

 //Set up functions for bees to move vertically and display.
 for(int i=0; i<beesY.length; i++){
   beesY[i].moveY2();
   beesY[i].display2();
   //If bear intersects bees
   if(bear.intersect(beesY[i])){
     //Show hurtBo and end game.
     bear.displayHurt();
     gameOver=true;
   }
 }
}

//Function for game Over screen.
void lose(){
 background(0);
 //Load font for words on Game Over screen.
 loseDisplay=loadFont("KristenITC-Regular-48.vlw");
 fill(255);
 //Align loseDisplay font.
 textAlign(CENTER);
 textFont(loseDisplay);
 //Write 'Game Over'.
 text("Game Over", width/2,height/4);
 //Write 'Score: currentScore'.
 text("Score: " + currentScore, width/2, 300);
 //Display hurtBo image.
 image(hurtBo, width/2, height/2-20, hurtBo.width, hurtBo.height);
 //Stop song when game is over.
 song.close();
 minim.stop();
 super.stop();
}

I'll add the class code below.